3
2
2+
3
4
1
5
4
3
3+
3+
3
1+
1+
1+
1
2
1+
1+
1
1
4
4
1
2+
2+
2+
6
4
2
7+
7
3
3+
3+
3+
5+
4
4
2
1+
1
3
2
1+
3
3
3
7+
7
4
5
5
1+
1+
1
0
2
3+
3
4+
4+
4+
0
0
0
3+
3
1+
3
3
2+
2
3
2
0
0
0
0
0
0
3+
3
1+
7
6
4
0
0
0
4+
3
3
0
0
0
3
3
1+
7
7
3
0
1
0
1
1
0
4
3
3+
0
0
0
1+
0
0
2
1
1
3
1-
0
0
0
0
3
3
3
2+
1+
2+
4
3+
2
3
0
2
0
0
0
7+
7
3
8
2+
3
4
1+
1+
0
0
1+
1
1+
1+
1+
0
0
3
4
1+
2
2+
1
4
4
2
1+
0
1
3+
3
0
0
0
0
1
1
0