2+1
3
2
3
+
2
5
1+
233
77
0
61
7
98
+3
0+
987+610
33
+2
144
5
13
13+21
21
34
+8
21
55
8
7
4
5
+
9
8+
37
14
55
3
13
1597
+3
4
1
89
5+
8
1
3
77
+
6
10
1
5
+3
4