1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 1
11 1
12 1
13 1
14 1
15 1
16 1
17 1
18 1
19 1
20 1
30 1
40 1
50 1
60 1
70 1
80 1
90 1
100 1
200 1
300 1
400 1
500 1
600 1
700 0
800 0
900 0
1000 0
2000 0
3000 0
4000 0
5000 0
