2
1+
1+
1
1+
1+
2
1-
1
2+
2
1+
0
0
1+
2
1+
1+
1
0
0
0
1+
1+
1
1-
0
1
1
1+
1
0
0
1
1
1
0
0
1-
1
0
0
1
1
0
0
0
0
3
2
1+
0
0
0
1+
1+
0
1
1
1+
1+
1
1+
0
0
0
1
1-
0
1
1-
1+
0
0
0
1
1
0
1
1-
0
1
1+
0
1
1+
0
2
1+
1
1
0
0
1
1
1
0
1-
0
1
1+
1+
2+
1+
1+
0
0
0
1
0
0
0
0
0
5
3
3
1
0
0
1
1
0
1
1
0
0
0
0
1
1+
1
1
1
0
3
1
1
0
0
0
1
0
1
3
2
1+
3
2+
2+
1
1+
0
1
1+
1+
1
1
1
1
0
1
1+
1+
1-
1
1
1
2
2
1
3
3
1
2
2
1+
2
4
1