-
7
＋
7
=
1
0
＋
5
=
1
9
－
1
=
1
2
－
5
=
7
＋
5
=
19
－
12=
7
＋
1
=
1
6
＋
2
=
8
＋
1
0
=
2
＋
1
4
=
1
3
－
2
=
4
＋
3
=
7
＋
3
=
5
＋
3
=
8
－
1
=
2
0
－
2
=
5
＋
8
= <
/p>
1
0
＋
8
=
1
6
－
9
=
9
＋
1
0
=
2
0
－
4
=
1
3
－
3
=
1
5
＋
5
=
1
9
－
1
=
1
9
－
4
=
2
0
－
1
=
5
＋
5
=
1
5
＋
5
=
1
5
＋
2
=
1
6
－
7
=
8
＋
5
= <
/p>
2
0
－
6
=
1
＋
1
8
=
1
＋
1
3
=
1
5
－
5
=
2
0
－
3
=
2
＋
1
7
=
8
＋
8
=
1
2
－
3
=
1
＋
1
6
=
2
0
－
1
=
1
＋
9
=
4
＋
1
4
=
1
4
＋
2
=
18
－
10=
3
＋
1
6
=
1
＋
1
4
=
1
＋
1
1
< br>=
1
2
－
5
=
1
5
＋
3
=
8
＋
3
=
2
＋
1
1
=
1
＋
7
=
1
6
＋
2
=
1
7
＋
2
=
1
8
＋
2
< br>=
4
＋
1
6
=
1
2
－
2
=
4
＋
3
= <
/p>
2
0
－
2
=
6
＋
1
0
=
1
1
＋
8
=
2
＋
1
8
=
9
＋
1
0
=
8
＋
6
=
1
3
－
4
=
3
＋
1
4
=
5
＋
4
=
1
0
－
2
=
1
5
＋
4
=
1
3
－
5
=
6
＋
6
=
5
＋
6
=
1
0
－
3
=
1
7
－
1
=
1
5
－
7
=
1
8
－
2
=
6
＋
8
=
10
＋
10=
1
＋
1
2
=
2
＋
1
6
=
1
0
＋
7
=
7
＋
7
=
5
＋
8
=
8
＋
5
=
2
0
－
3
=
2
＋
1
7
=
8
＋
8
=
6
＋
6
=
5
＋
6
= <
/p>
1
8
－
2
=
1
0
＋
7
=
7
＋
5
=
8
＋
1
0
=
7
＋
3
= <
/p>
2
0
－
4
=
1
9
－
4
=
1
5
＋
2
=
1
6
－
7
=
8
＋
5
= <
/p>
2
0
－
6
=
1
＋
1
8
=
1
＋
1
3
=
7
＋
3
=
1
5
－
5
=
2
＋
1
7
=
8
＋
8
=
1
2
－
3
=
1
＋
1
6
=
2
0
－
2
=
10
＋
10=
5
＋
8
= <
/p>
2
0
－
1
=
6
＋
1
0
=
1
＋
1
2
=
2
0
－
4
=
1
＋
9
=
1
1
＋
8
=
1
3
－
5
=
1
9
－
4
=
4
＋
1
4
=
2
＋
1
8
=
2
＋
1
6
=
1
5
＋
2
=
1
4
＋
2
=
9
＋
1
0
=
7
＋
7
=
1
6
－
7
=
18
－
10=
8
＋
6
=
5
＋
8
=
8
＋
5
= <
/p>
3
＋
1
6
=
1
3
－
4
=
8
＋
5
=
2
0
－
6
=
1
＋
1
4
=
1
＋
1
1
=
1
0
＋
5
=
19
－
12=
2
＋
1
4
=
5
＋
3
=
1
0
＋
8
=
1
3
－
3
=
2
0
－
1
=
1
2
－
5
=
1
5
＋
3
=
8
＋
3
=
2
＋
1
1
=
1
＋
7
=
1
6
＋
2
=
1
7
＋
2
=
1
8
＋
2
< br>=
4
＋
1
6
=
1
2
－
2
=
4
＋
3
= <
/p>
3
＋
1
4
=
5
＋
4
=
1
9
－
1
=
7
＋
1
=
1
3
－
2
=
8
－
1
=
1
6
－
9
=
1
5
＋
5
=
5
＋
5
=
1
0
－
2
=
1
5
＋
4
=
1
3
－
5
=
6
＋
6
=
5
＋
6
=
1
0
－
3
=
1
7
－
1
=
1
5
－
7
=
1
8
－
2
=
1
3
－
5
=
6
＋
8
=
2
0
－
6
=
1
5
－
5
=
2
0
－
3
=
3
＋
1
6
=
2
＋
1
4
=
5
＋
3
= <
/p>
1
2
－
5
=
1
6
＋
2
=
4
＋
3
=
9
＋
1
0
=
8
＋
6
= <
/p>
1
9
－
1
=
1
5
＋
5
=
6
＋
6
=
18
－
12=
6
＋
8
= <
/p>
1
0
＋
7
=
7
＋
5
=
8
＋
1
0
=
7
＋
3
=
1
＋
1
8
=
1
＋
1
3
=
2
＋
1
7
=
8
＋
8
= <
/p>
1
2
－
3
=
1
＋
1
6
=
1
＋
9
=
4
＋
1
4
=
1
4
＋
2
=
18
－
10=
1
＋
1
4
=
1
＋
1
1
=
1
0
＋
5
=
19
－
12=
5
＋
3
=
1
0
＋
8
=
1
3
－
3
=
8
＋
8
=
2
0
－
1
=
1
5
＋
3
=
8
＋
3
=
1
5
＋
4
=
1
9
－
1
=
18
－
10=
2
＋
1
1
=
6
＋
6
= <
/p>
1
5
＋
5
=
1
＋
1
4
=
1
＋
7
=
5
＋
6
=
6
＋
6
=
1
＋
1
1
=
1
6
＋
2
=
1
0
－
3
=
1
8
－
2
=
1
0
＋
5
=
1
7
＋
2
=
1
7
－
1
=
6
＋
8
= <
/p>
2
＋
1
4
=
1
8
＋
2
=
1
5
－
7
=
2
＋
1
6
=
5
＋
3
=
4
＋
1
6
=
1
8
－
2
=
1
0
＋
7
=
1
0
＋
8
=
1
2
－
2
=
4
＋
3
= <
/p>
2
0
－
2
=
6
＋
1
0
=
1
1
＋
8
=
2
＋
1
8
=
9
＋
1
0
=
8
＋
6
=
1
3
－
4
=
3
＋
1
4
=
5
＋
4
=
1
9
－
1
=
7
＋
1
=
1
3
－
2
=
8
－
1
=
1
6
－
9
=
1
5
＋
5
=
1
2
－
2
=
5
＋
5
=
1
0
－
2
=
6
＋
8
=
10
＋
10=
1
＋
1
2
=
1
3
－
5
=
2
＋
1
6
=
7
＋
7
=
5
＋
8
=
8
＋
5
=
1
5
－
5
=
2
0
－
3
=
2
0
－
1
=
1
4
＋
2
=
3
＋
1
6
=
19
－
12=
2
＋
1
4
=
1
2
－
5
=
1
6
＋
2
=
4
＋
3
=
9
＋
1
0
=
8
＋
6
=
7
＋
5
=
8
＋
1
0
=
7
＋
3
= <
/p>
2
0
－
4
=
1
9
－
4
=
1
5
＋
2
=
1
6
－
7
=
8
＋
5
= <
/p>
2
0
－
6
=
1
＋
1
8
=
1
＋
1
3
=
7
＋
3
=
1
5
－
5
=
2
0
－
3
=
2
＋
1
7
< br>=
1
2
－
3
=
1
＋
1
6
=
1
＋
1
6
=
1
＋
9
=
4
＋
1
4
=
1
3
－
3
=
8
＋
8
=
1
5
＋
3
=
8
＋
3
=
2
＋
1
1
=
1
＋
7
= <
/p>
1
7
＋
2
=
1
8
＋
2
=
4
＋
1
6
=
1
2
－
2
=
4
＋
3
=
2
0
－
2
=
6
＋
1
0
=
1
1
＋
8
=
2
＋
1
8
=
9
＋
1
0
=
8
＋
8
=
1
＋
1
1
=
1
3
－
3
=
1
＋
7
=
1
6
＋
2
=
8
＋
5
=
7
＋
1
3
=
1
＋
1
3
=
8
＋
6
=
1
5
－
5
=
1
3
＋
4
=
4
＋
1
0
=
1
3
－
4
=
2
0
－
1
=
1
9
－
6
=
7
＋
8
=
3
＋
1
4
=
1
＋
9
= <
/p>
1
3
＋
2
=
7
＋
6
=
5
＋
4
=
1
4
＋
2
=
1
5
＋
1
=
9
＋
8
= <
/p>
1
9
－
1
=
3
＋
1
6
=
1
6
－
4
=
1
8
－
6
=
7
＋
1
=
19
－
12=
1
0
－
2
=
1
4
＋
3
=
1
3
－
2
< br>=
8
－
1
=
1
6
－
9
=
1
5
＋
5
=
5
＋
5
=
1
0
－
2
=
1
5
＋
4
=
1
3
－
5
=
6
＋
6
=
5
＋
6
=
1
0
－
3
=
1
7
－
1
=
1
5
－
7
=
1
8
－
2
=
6
＋
8
=
10
＋
10=
1
＋
1
2
=
7
＋
7
=
7
＋
5
=
5
＋
8
=
1
2
－
5
=
1
5
＋
3
=
1
6
＋
2
=
4
＋
3
=
9
＋
1
0
=
1
9
－
1
=
7
＋
1
= <
/p>
1
5
＋
5
=
6
＋
6
=
1
8
－
2
=
2
＋
1
6
=
< br>1
0
＋
7
=
7
＋
5
=
3
＋
5
=
1
6
＋
4
=
4
＋
6
=
6
＋
5
=
6
＋
3
=
1
4
－
5
=
6
＋
1
=
2
＋
1
4
=
1
8
－
4
=
5
＋
3
=
1
1
－
1
=
2
＋
1
8
=
2
0
－
< br>3
=
1
9
－
4
=
8
＋
8
=
1
4
＋
5
=
5
＋
3
= <
/p>
1
9
－
8
=
7
＋
1
1
=
1
＋
1
9
=
1
9
－
2
=
4
＋
8
=
2
＋
1
4
=
2
＋
1
8
=
4
＋
8
=
1
8
－
1
=
1
3
＋
2
=
1
＋
1
6
=
4
＋
4
=
1
2
－
5
=
1
6
－
1
=
1
2
－
3
=
1
1
＋
2
=
1
1
－
3
=
6
＋
3
= <
/p>
7
＋
1
0
=
6
＋
5
=
1
3
＋
4
=
6
＋
1
0
=
1
5
＋
4
=
1
0
－
2
=
5
＋
5
=
1
3
－
5
=
9
＋
8
=
9
＋
1
0
=
6
＋
8
=
1
5
＋
4
=
10
＋
10=
1
9
－
4
=
5
＋
3
=
2
0
－
4
=
5
＋
8
=
1
5
＋
5
=
1
9
－
4
=
2
0
－
8
=
1
3
－
5
=
20
－
11=
1
2
＋
3
=
1
4
＋
6
=
2
0
－
1
=
1
8
－
9
=
1
7
－
1
=
1
5
＋
2
=
1
4
＋
2
=
1
7
－
3
=
4
＋
1
0
=
5
＋
1
0
=
3
＋
1
6
=
1
2
＋
3
=
2
0
－
9
=
5
＋
5
=
1
8
－
7
=
1
7
－
1
=
1
9
－
2
=
1
2
－
5
=
20
－
11=
1
2
－
5
=
5
＋
1
3
=
5
＋
6
=
6
＋
1
3
=
5
＋
1
1
=
1
4
－
1
=
4
＋
5
=
4
＋
3
=
8
＋
1
2
=
5
＋
8
=
4
＋
7
=
1
3
＋
5
=
3
＋
8
=
1
2
＋
5
=
2
＋
6
= <
/p>
1
6
－
2
=
2
＋
5
=
2
0
－
6
=
18
－
11=
6
＋
1
1
=
1
9
－
6
=
3
＋
1
3
=
2
0
－
9
=
1
7
－
6
=
1
6
－
4
=
1
7
－
4
=
2
＋
8
=
9
＋
2
= <
/p>
1
9
＋
1
=
1
7
－
8
=
3
＋
6
=
1
4
＋
4
=
4
＋
5
= <
/p>
1
2
－
5
=
5
＋
1
1
=
1
9
－
8
=
2
＋
6
=
1
6
－
2
=
1
＋
1
9
=
9
＋
2
=
1
9
＋
1
=
1
2
＋
2
=
1
0
－
3
< br>=
20
－
13=
1
2
＋
7
=
7
＋
1
0
=
1
＋
1
6
=
2
0
－
8
< br>=
1
6
－
1
=
1
2
＋
4
=
1
＋
1
8
=
1
8
－
4
=
8
＋
1
0
< br>=
1
3
＋
7
=
1
7
－
2
=
1
9
－
6
=
1
1
＋
4
=
1
0
＋
2
< br>=
1
＋
1
4
=
1
1
＋
2
=
7
＋
8
=
1
4
＋
2
=
5
＋
1
3
=
5
＋
6
= <
/p>
6
＋
1
3
=
1
4
－
1
=
4
＋
5
=
4
＋
3
=
8
＋
1
2
=
5
＋
8
=
4
＋
7
=
1
8
－
1
=
1
3
＋
5
=
3
＋
8
= <
/p>
1
2
＋
5
=
1
6
－
2
=
1
5
＋
4
=
2
＋
5
=
2
0
－
6
=
18
－
11=
2
＋
6
=
1
＋
1
8
=
4
＋
7
=
1
5
＋
5
=
1
＋
1
9
=
1
8
－
4
=
1
8
－
1
=
20
－
11=
1
5
＋
4
=
8
＋
1
0
=
1
3
＋
5
=
1
8
－
9
=
5
＋
3
=
1
3
＋
7
=
3
＋
8
= <
/p>
1
7
－
3
=
1
9
－
4
=
1
7
－
2
=
1
2
＋
5
=
2
0
－
6
=
1
2
＋
3
=
1
9
－
6
=
1
6
－
2
=
7
＋
1
0
=
4
＋
1
0
=
1
1
＋
4
=
1
5
＋
4
=
1
＋
1
8
=
1
9
－
6
=
6
＋
1
3
=
1
8
－
7
=
1
2
－
5
=
5
＋
6
=
8
＋
1
2
=
5
＋
8
=
3
＋
8
=
1
7
－
3
=
1
7
－
1
=
6
＋
1
1
=
4
＋
1
0
=
4
＋
5
=
1
9
＋
1
=
1
4
＋
4
=
1
7
－
4
=
2
0
－
4
=
5
＋
1
1
=
1
9
－
8
< br>=
3
＋
1
3
=
2
0
－
9
=
<
/p>
1
7
－
6
=
1
6
－
4
=
1
9
－
2
=
1
7
－
4
=
2
＋
8
=
9
＋
2
=
1
7
－
8
=
3
＋
6
=
1
4
＋
4
=
1
2
＋
2
=
1
0
－
3
< br>=
20
－
13=
1
2
＋
7
=
7
＋
1
0
=
1
＋
1
6
=
2
0
－
8
< br>=
1
6
－
1
=
1
2
＋
4
=
1
0
＋
2
=
1
＋
1
4
=
2
0
－
4
=
2
0
－
8
=
1
4
＋
6
=
1
5
＋
2
< br>=
5
＋
1
0
=
5
＋
5
=
1
2
－
5
=
1
1
＋
2
=
7
＋
8
=
1
4
＋
2
=
5
＋
1
3
=
5
＋
6
= <
/p>
6
＋
1
3
=
1
4
－
1
=
4
＋
5
=
4
＋
3
=
8
＋
1
2
=
5
＋
8
=
2
＋
5
=
2
0
－
6
=
18
－
11=
1
5
＋
5
=
20
－
11=
1
8
－
9
=
1
7
－
3
=
1
9
－
6
=
3
＋
1
3
=
2
0
－
6
=
7
＋
1
0
=
1
＋
1
6
=
2
0
－
8
=
1
8
－
7
=
1
2
－
5
=
5
＋
6
=
6
＋
1
3
=
8
＋
1
2
=
3
＋
8
=
1
9
－
8
=
2
＋
6
=
1
9
－
7
=
20
－
12=
8
＋
1
1
=
1
6
－
2
=
7
＋
1
1
=
9
＋
1
1
=
4
＋
7
=
1
＋
1
9
=
1
4
＋
3
=
2
0
－
8
=
1
9
－
2
=
5
＋
3
=
9
＋
9
=
1
2
＋
3
=
1
7
－
3
=
1
9
－
4
=
1
9
－
2
=
1
1
＋
3
=
1
7
－
1
=
1
5
＋
3
=
4
＋
9
=
6
＋
8
=
3
＋
4
= <
/p>
2
＋
1
5
=
2
0
－
5
=
1
1
－
4
=
5
＋
9
=
6
＋
1
1
=
1
＋
1
0
=
6
＋
9
=
1
1
－
1
=
6
＋
7
= <
/p>
5
＋
1
1
=
1
3
＋
3
=
1
＋
1
2
=
6
＋
4
=
2
＋
1
4
=
4
＋
4
=
1
1
＋
1
=
1
9
－
9
=
7
＋
1
2
=
2
0
－
2
=
1
4
＋
5
=
1
4
＋
1
< br>=
8
＋
1
1
=
1
＋
1
5
=
4
＋
7
= <
/p>
1
9
－
3
=
20
－
10=
1
7
－
1
=
3
＋
4
=
1
9
－
5
=
1
8
－
5
=
3
＋
1
7
=
5
＋
9
=
6
＋
2
=
1
6
＋
3
=
7
＋
9
=
5
＋
7
=
7
＋
6
=
8
－
1
=
9
－
1
=
3
＋
1
5
=
1
＋
1
7
=
4
＋
4
= <
/p>
1
3
＋
1
=
2
＋
1
6
=
7
＋
1
1
=
5
＋
1
3
=
7
＋
7
=
4
＋
6
=
1
7
＋
3
=
8
－
1
=
6
＋
6
=
1
8
－
2
=
2
0
－
7
=
1
4
＋
6
=
7
＋
1
3
=
1
7
＋
3
=
7
＋
1
3
=
1
1
＋
5
=
7
＋
4
=
5
＋
1
1
=
1
0
－
3
=
2
＋
1
4
< br>=
2
0
－
2
=
4
＋
5
=
1
2
＋
5
=
7
＋
6
=
1
6
－
2
=
1
4
＋
3
=
2
0
－
8
=
2
＋
6
=
5
＋
1
1
=
1
3
＋
3
=
1
＋
1
2
=
6
＋
4
=
4
＋
4
=
1
1
＋
1
=
1
＋
1
9
=
1
9
－
9
=
1
9
－
4
=
7
＋
1
2
=
1
4
＋
5
=
1
4
＋
1
=
4
＋
5
=
8
＋
1
1
=
1
＋
1
5
=
1
＋
1
7
=
2
＋
1
4
=
6
＋
9
=
1
9
－
7
=
4
＋
4
= <
/p>
2
0
－
2
=
5
＋
4
=
7
＋
1
1
=
1
3
＋
1
=
4
＋
5
=
3
＋
7
=
9
＋
9
= <
/p>
2
＋
1
6
=
4
＋
7
=
1
＋
1
9
=
1
4
＋
3
=
20
－
12=
1
9
－
7
=
19
－
12=
1
＋
1
2
=
9
＋
1
1
=
1
9
－
2
=
1
5
－
5
=
1
9
－
9
=
2
0
－
8
=
1
7
－
3
=
3
＋
1
1
=
9
＋
9
=
1
9
－
2
=
4
＋
9
=
2
0
－
5
=
1
9
－
3
=
20
－
10=
1
7
－
3
=
3
＋
4
=
1
9
－
5
=
1
8
－
5
=
3
＋
1
7
=
5
＋
9
=
6
＋
2
=
1
6
＋
3
=
7
＋
9
=
5
＋
7
=
7
＋
6
=
8
－
1
=
9
－
1
=
3
＋
1
5
=
1
2
＋
3
=
1
1
＋
3
=
6
＋
8
=
1
1
－
4
=
7
＋
1
1
=
5
＋
1
3
=
7
＋
7
=
4
＋
6
=
1
7
＋
3
=
8
－
1
=
7
＋
4
=
6
＋
6
=
1
8
－
2
=
2
0
－
7
=
1
4
＋
6
=
7
＋
1
3
=
1
1
＋
5
< br>=
7
＋
4
=
1
0
－
3
=
6
＋
4
= <
/p>
1
7
－
1
=
5
＋
9
=
1
2
＋
5
=
7
＋
6
=
1
6
－
2
=
2
0
－
8
=
2
＋
6
=
7
＋
7
= <
/p>
5
＋
1
1
=
6
＋
4
=
19
－
10=
4
＋
4
=
1
3
＋
3
=
6
＋
1
2
=
9
＋
1
=
1
3
＋
5
=
3
＋
9
=
2
＋
6
= <
/p>
1
5
－
2
=
1
2
＋
1
=
1
0
＋
7
=
1
9
－
4
=
1
5
＋
5
=
1
8
－
9
=
1
7
－
2
=
2
0
－
2
=
6
＋
1
1
=
1
8
－
7
=
20
－
10=
3
＋
4
=
5
＋
8
=
1
7
－
7
=
1
7
－
5
=
9
＋
3
=
18
－
10=
2
＋
1
7
=
3
＋
6
=
7
＋
1
1
=
2
0
－
9
=
1
8
－
5
=
1
0
＋
5
=
1
2
＋
6
=
19
－
10=
1
7
－
7
=
1
3
＋
7
=
7
＋
9
=
4
＋
6
= <
/p>
1
7
－
5
=
2
＋
5
=
1
4
－
2
=
4
＋
4
=
9
＋
3
=
6
＋
1
4
=
5
＋
1
3
=
6
＋
1
2
=
18
－
10=
1
4
＋
5
=
5
＋
6
=
9
＋
1
=
2
＋
1
7
=
1
0
＋
3
=
8
＋
1
1
=
1
3
＋
5
=
3
＋
6
=
1
2
＋
8
=
6
＋
1
3
=
3
＋
9
= <
/p>
1
0
－
3
=
1
7
－
4
=
1
0
＋
1
=
2
0
－
5
=
1
2
＋
3
=
2
＋
9
=
1
5
－
3
=
4
＋
1
6
=
1
8
－
3
=
20
－
12=
1
9
－
2
=
2
＋
1
7
=
6
＋
6
=
1
＋
1
7
=
2
0
－
9
=
1
0
＋
5
=
1
0
＋
3
< br>=
1
2
＋
3
=
20
－
12=
6
＋
1
4
=
2
＋
7
=
1
4
＋
6
=
1
8
－
5
=
5
＋
9
=
1
3
＋
3
=
1
＋
1
5
=
1
2
＋
5
=
15
－
12=
3
＋
7
=
1
0
＋
7
=
2
0
－
2
=
5
＋
7
=
1
9
－
1
=
5
＋
8
=
2
0
－
7
=
1
9
－
2
=
1
7
－
3
=
1
0
－
3
=
2
0
－
8
=
5
＋
1
1
< br>=
5
＋
1
3
=
2
＋
6
=
1
5
－
2
=
1
2
＋
1
=
6
＋
9
=
5
＋
4
= <
/p>
1
＋
1
9
=
19
－
12=
1
5
－
5
=
3
＋
1
1
=
< br>1
0
＋
7
=
1
9
－
4
=
1
5
＋
5
=
1
8
－
9
=
1
7
－
2
=
2
0
－
2
=
6
＋
1
1
=
1
8
－
7
=
9
－
1
=
20
－
10=
3
＋
4
=
7
＋
1
1
=
2
0
－
9
=
1
＋
1
9
=
1
8
－
5
=
1
3
＋
7
=
2
＋
5
=
6
＋
1
4
=
1
4
＋
5
=
1
2
＋
8
=
1
7
－
4
=
1
0
＋
1
=
2
0
－
5
=
1
2
＋
3
=
2
＋
9
=
1
5
－
3
=
4
＋
1
6
=
1
8
－
3
=
20
－
12=
3
＋
9
=
5
＋
4
=
1
2
＋
3
=
2
＋
6
=
19
－
12=
4
＋
1
6
=
3
＋
4
=
3
＋
7
=
1
5
－
5
=
5
＋
1
1
=
5
＋
8
= <
/p>
1
0
＋
7
=
3
＋
1
1
=
1
8
－
3
=
2
＋
1
7
=
2
0
－
2
=
1
0
＋
7
=
3
＋
9
=
6
＋
6
=
5
＋
7
=
1
9
－
4
=
5
＋
4
=
1
＋
1
7
=
9
－
1
= <
/p>
1
5
＋
5
=
1
2
＋
3
=
1
0
＋
5
=
5
＋
8
=
1
8
－
9
=
1
7
－
2
=
1
3
＋
7
=
1
4
＋
5
=
1
0
＋
3
=
1
2
＋
8
=
20
－
12=
6
＋
1
4
=
2
＋
7
=
1
2
＋
6
=
7
＋
9
=
1
4
－
2
=
5
＋
1
3
=
5
＋
6
=
8
＋
1
1
=
6
＋
1
3
=
4
＋
6
=
1
8
－
5
=
5
＋
9
=
1
3
＋
3
=
1
＋
1
5
=
1
2
＋
5
=
2
0
－
7
=
1
9
－
2
=
17
－
13=
1
0
－
3
=
2
0
－
8
=
5
＋
1
1
< br>=
5
＋
1
3
=
19
－
10=
4
＋
6
=
4
＋
4
=
6
＋
1
2
=
9
＋
1
=
1
3
＋
5
=
3
＋
9
=
2
＋
6
=
1
5
－
2
=
1
2
＋
1
=
6
＋
9
=
5
＋
4
= <
/p>
1
＋
1
9
=
1
7
－
2
=
2
0
－
2
=
6
＋
1
1
=
1
8
－
7
=
9
－
1
=
20
－
10=
3
＋
4
= <
/p>
1
0
－
3
=
7
＋
1
1
=
2
0
－
9
=
1
8
－
5
=
1
0
＋
5
=
1
3
＋
7
=
2
＋
5
=
6
＋
1
4
=
1
7
－
4
=
< br>1
0
＋
1
=
2
0
－
5
=
2
＋
9
=
1
5
－
3
=
3
＋
4
=
1
7
－
7
=
17
－
10=
1
3
－
5
=
1
3
＋
7
=
1
4
－
5
=
8
＋
5
=
5
＋
1
4
=
1
6
－
5
=
8
＋
1
=
4
＋
9
=
1
6
－
3
=
1
2
＋
8
=
1
＋
7
=
20
－
12=
1
0
＋
5
=
1
1
＋
8
=
7
＋
3
=
8
＋
3
=
20
－
10=
1
0
＋
3
=
1
7
－
5
=
4
＋
1
3
=
1
＋
7
=
9
＋
3
=
4
＋
1
2
=
4
＋
1
4
=
1
0
＋
5
=
1
＋
9
=
1
9
－
7
=
1
1
＋
1
=
1
1
＋
8
=
1
1
＋
3
=
1
9
－
7
=
2
＋
9
=
7
＋
3
= <
/p>
1
8
－
7
=
1
9
－
9
=
2
＋
7
=
8
＋
3
=
1
0
＋
1
=
4
＋
1
1
=
1
6
－
4
=
1
5
－
3
=
19
－
11=
1
4
－
7
=
7
＋
1
=
1
0
＋
3
=
1
3
－
2
=
1
9
－
5
=
19
－
12=
6
＋
1
3
=
1
7
＋
2
=
1
8
＋
2
=
3
＋
8
=
6
＋
9
= <
/p>
4
＋
1
3
=
5
＋
1
1
=
8
＋
1
=
3
＋
6
=
4
＋
1
4
=
1
6
－
7
=
1
1
＋
5
< br>=
2
＋
1
3
=
2
＋
1
1
=
1
1
＋
1
=
1
3
－
3
=
1
7
－
8
< br>=
2
＋
7
= <
/p>
1
6
－
4
=
4
＋
7
=
1
6
－
9
=
19
－
10=
7
＋
1
=
1
3
＋
7
=
1
8
－
9
=
5
＋
1
3
=
20
－
12=
1
1
＋
8
=
20
－
10=
7
＋
1
1
=
19
－
12=
1
8
－
7
=
19
－
11=
1
5
－
2
=
1
5
－
5
=
3
＋
1
1
=
6
＋
9
=
1
＋
1
1
=
1
＋
6
=
6
＋
1
1
=
1
6
－
7
=
1
6
－
2
=
1
1
＋
6
< br>=
4
＋
1
6
=
17
－
10=
1
3
＋
5
=
1
3
－
5
=
1
3
＋
7
< br>=
1
4
－
5
=
8
＋
5
=
5
＋
1
4
=
1
6
－
5
=
1
8
－
5
< br>=
4
＋
9
=
1
6
－
3
=
5
＋
1
3
=
1
2
＋
8
=
9
＋
3
=
2
＋
9
=
1
＋
9
=
1
1
＋
3
=
1
0
＋
1
=
19
－
11=
1
8
－
7
=
1
3
－
2
=
1
8
－
3
=
1
9
－
5
=
6
＋
1
3
=
1
7
＋
2
=
1
8
＋
2
=
3
＋
8
=
4
＋
1
3
=
5
＋
1
1
=
8
＋
1
=
3
＋
6
=
1
6
－
7
=
1
1
＋
5
=
2
＋
1
3
=
20
－
12=
1
3
＋
7
=
3
＋
1
1
=
2
＋
1
1
=
7
＋
3
=
1
4
－
5
=
6
＋
1
3
=
1
3
－
3
=
20
－
10=
8
＋
5
= <
/p>
1
8
＋
2
=
3
＋
4
=
7
＋
1
1
=
1
6
－
5
=
3
＋
8
=
1
7
－
8
=
19
－
12=
1
8
－
5
=
4
＋
1
3
=
1
7
－
5
=
2
＋
9
=
4
＋
9
=
5
＋
1
1
=
4
＋
1
2
=
1
8
－
7
=
1
6
－
3
=
3
＋
6
=
1
9
－
7
=
1
9
－
9
=
4
＋
1
1
=
1
4
－
7
=
2
＋
7
= <
/p>
1
8
－
7
=
1
7
＋
2
=
8
＋
1
=
2
＋
1
1
=
1
1
＋
1
=
4
＋
1
2
=
1
6
－
4
< br>=
4
＋
7
=
1
6
－
9
=
19
－
10=
1
3
＋
5
=
1
8
－
9
=
5
＋
1
4
=
5
＋
1
3
=
4
＋
9
=
19
－
12=
1
5
－
2
=
1
5
－
5
=
3
＋
1
1
=
6
＋
9
=
4
＋
1
4
=
1
1
＋
1
=
1
3
－
3
=
2
＋
7
=
19
－
10=
7
＋
1
=
1
＋
1
1
=
1
＋
6
= <
/p>
6
＋
1
1
=
1
6
－
2
=
1
1
＋
6
=
4
＋
1
6
=
1
1
＋
3
=
17
－
10=
1
3
－
5
=
5
＋
1
3
=
1
2
＋
8
=
1
＋
7
=
1
0
＋
5
=
1
1
＋
8
=
7
＋
3
=
8
＋
3
=
1
5
－
3
=
1
0
＋
3
=
9
＋
3
=
2
＋
9
=
1
＋
9
=
1
1
＋
3
=
1
0
＋
1
=
19
－
11=
1
8
－
7
=
1
3
－
2
=
1
8
－
3
< br>=
1
9
－
5
=
1
5
－
5
=
1
6
－
7
=
1
1
＋
5
=
2
＋
1
3
=
2
＋
1
1
=
1
1
＋
6
=
8
＋
5
=
1
7
＋
2
=
5
＋
1
1
=
8
＋
1
=
2
＋
1
1
=
1
3
－
3
=
3
＋
4
=
1
7
－
8
=
1
1
＋
8
=
1
7
－
5
=
4
＋
1
2
=
1
9
－
7
=
1
9
－
9
=
4
＋
1
1
=
1
4
－
7
=
1
6
－
4
=
2
＋
7
=
2
0
－
2
=
4
＋
3
=
4
＋
7
=
1
6
－
4
=
6
＋
2
=
1
2
－
5
=
1
6
－
9
=
19
－
10=
1
9
－
2
=
7
＋
4
=
19
－
10=
7
＋
1
=
1
8
－
2
=
9
＋
1
0
=
1
＋
6
=
1
＋
1
1
=
1
0
－
3
=
1
＋
7
=
4
＋
1
1
=
6
＋
1
1
=
1
8
－
4
=
1
3
－
3
=
1
3
＋
5
=
1
6
－
7
=
3
＋
1
7
=
1
＋
1
7
=
1
8
－
9
=
1
4
－
5
=
5
＋
1
4
=
8
＋
1
=
5
＋
1
3
=
20
－
12=
1
0
＋
5
=
7
＋
3
=
20
－
10=
7
＋
1
1
=
19
－
12=
1
0
＋
3
=
2
＋
9
=
1
8
－
7
=
1
5
－
2
=
3
＋
1
1
=
6
＋
1
3
=
6
＋
9
=
4
＋
1
4
=
1
1
＋
1
=
1
6
－
2
=
9
＋
6
=
1
3
＋
2
=
8
－
1
=
2
＋
1
2
=
6
＋
4
=
2
＋
1
4
=
7
＋
6
=
1
4
＋
4
=
4
＋
4
= <
/p>
9
＋
1
1
=
9
＋
4
=
10
＋
10=
4
＋
6
=
1
2
－
3
=
7
＋
1
0
=
1
＋
1
9
< br>=
1
5
＋
2
=
9
＋
8
=
1
6
＋
3
=
6
＋
8
=
1
3
－
5
=
6
＋
1
=
8
－
1
=
2
＋
1
2
=
4
＋
4
=
1
2
－
3
=
7
＋
1
0
=
1
6
＋
3
=
1
0
－
3
=
6
＋
1
=
1
6
＋
2
=
7
＋
8
=
6
＋
6
=
8
＋
5
=
9
－
1
=
3
＋
1
4
=
1
6
－
2
=
1
4
＋
2
=
2
＋
1
6
=
9
＋
9
=
17
－
10=
1
1
－
3
=
1
4
－
5
=
5
＋
1
4
=
1
1
－
2
< br>=
3
＋
1
6
=
1
9
－
4
=
1
4
＋
3
=
1
1
－
1
=
7
＋
6
= <
/p>
1
6
＋
4
=
1
5
－
8
=
1
8
＋
2
=
1
8
－
1
=
6
＋
6
=
6
＋
3
=
1
0
＋
6
=
1
4
＋
5
=
1
3
－
1
=
1
1
＋
8
=
1
＋
1
9
=
3
＋
1
4
=
6
＋
3
=
8
＋
3
=
1
5
＋
2
=
1
6
－
2
=
1
0
＋
6
=
1
0
＋
8
=
9
＋
8
=
1
4
＋
2
=
1
4
＋
5
=
1
4
－
7
=
1
6
＋
3
=
2
＋
1
6
=
1
3
－
1
=
7
＋
1
=
2
0
－
2
=
4
＋
3
=
1
1
＋
8
=
6
＋
8
=
6
＋
2
=
1
2
－
5
=
8
＋
3
=
7
＋
8
=
1
9
－
2
=
7
＋
4
= <
/p>
1
0
＋
8
=
1
6
－
2
=
7
＋
4
=
9
＋
9
=
17
－
10=
1
1
－
2
=
1
1
＋
8
=
9
＋
6
=
1
3
＋
2
=
8
－
1
=
6
＋
4
=
2
＋
1
4
=
7
＋
6
=
1
4
＋
4
=
4
＋
4
= <
/p>
9
＋
1
1
=
9
＋
4
=
10
＋
10=
4
＋
6
=
1
2
－
3
=
7
＋
1
0
=
1
8
－
2
< br>=
1
0
－
3
=
7
＋
8
=
8
－
1
=
2
＋
1
2
=
4
＋
4
=
9
＋
1
1
=
1
2
－
3
=
1
6
＋
3
=
1
0
－
3
=
1
8
－
4
=
3
＋
1
7
=
6
＋
8
=
1
3
－
5
=
6
＋
1
=
1
6
＋
2
=
7
＋
8
=
6
＋
6
=
8
＋
5
=
9
－
1
=
9
＋
1
0
=
1
＋
7
=
1
3
－
3
=
1
＋
1
7
=
9
＋
9
=
17
－
10=
1
1
－
3
=
1
4
－
5
=
5
＋
1
4
=
1
1
－
2
=
3
＋
1
6
=
1
9
－
4
< br>=
1
4
＋
3
=
1
1
－
1
=
7
＋
6
= <
/p>
1
6
＋
4
=
1
5
－
8
=
1
8
＋
2
=
1
8
－
1
=
6
＋
6
= <
/p>
1
4
－
7
=
3
＋
1
7
=
7
＋
1
=
7
＋
8
=
1
6
－
2
=
7
＋
4
=
9
＋
9
=
17
－
10=
1
1
－
2
=
1
1
＋
8
=
9
＋
6
=
1
3
＋
2
=
8
－
1
=
6
＋
4
=
2
＋
1
4
=
7
＋
6
=
1
4
＋
4
=
4
＋
4
= <
/p>
9
＋
1
1
=
9
＋
4
=
10
＋
10=
7
＋
8
= <
/p>
1
5
－
8
=
1
4
＋
4
=
4
＋
6
=
6
＋
6
=
1
8
＋
2
=
4
＋
4
= <
/p>
1
2
－
3
=
8
＋
5
=
1
8
－
1
=
9
＋
1
1
=
7
＋
1
0
=
9
－
1
=
6
＋
6
=
9
＋
4
=
1
＋
1
9
=
3
＋
1
4
=
6
＋
3
=
10
＋
10=
1
5
＋
2
=
1
6
－
2
=
1
0
＋
6
=
4
＋
6
=
9
＋
8
=
1
4
＋
2
=
1
4
＋
5
=
1
2
－
3
=
1
6
＋
3
=
1
8
－
4
=
7
＋
1
=
8
－
1
=
2
＋
1
2
=
6
＋
4
=
4
＋
4
=
1
2
－
3
=
1
6
＋
3
=
2
0
－
2
=
6
＋
2
= <
/p>
1
9
－
2
=
1
8
－
2
=
1
0
－
3
=
1
8
－
4
=
3
＋
1
7
=
6
＋
8
=
1
3
－
5
=
6
＋
1
=
1
6
＋
2
=
2
＋
1
6
=
4
＋
3
=
1
2
－
5
=
7
＋
4
= <
/p>
9
＋
1
0
=
1
＋
7
=
1
3
－
3
=
1
＋
1
7
=
9
＋
9
=
17
－
10=
1
1
－
3
=
1
4
－
5
=
5
＋
1
4
=
1
1
－
2
=
3
＋
1
6
=
1
9
－
4
< br>=
1
4
＋
3
=
1
1
－
1
=
7
＋
6
= <
/p>
1
6
＋
4
=
1
3
－
1
=
1
1
＋
8
=
8
＋
3
=
1
0
＋
8
=
1
4
－
7
=
6
＋
2
=
1
9
－
2
=
3
＋
1
7
=
7
＋
8
=
1
6
－
2
=
7
＋
4
=
9
＋
1
0
=
9
＋
9
=
1
1
－
2
=
1
1
＋
8
=
9
＋
6
=
1
3
＋
2
=
6
＋
4
=
2
＋
1
4
=
7
＋
6
=
1
9
－
2
=
9
＋
8
=
2
0
－
4
=
1
2
＋
2
=
9
＋
1
1
=
1
5
－
2
=
2
0
－
7
=
1
8
－
7
=
1
0
－
1
=
5
＋
6
=
8
＋
1
1
=
5
＋
1
1
=
1
8
－
5
< br>=
5
＋
8
=
1
4
＋
2
=
1
5
＋
3
=
1
＋
1
4
=
6
＋
1
1
=
1
2
＋
5
=
1
6
－
1
=
-
-
-
-
-
-
-
-
-
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