Time Limit: 1 Seconds
Memory Limit: 1024MB
Your best score: 0
Source: Unknown Source

Subtask Score
1 5
2 5
3 5
4 5
5 5
6 5
7 5
8 5
9 5
10 5
11 5
12 5
13 5
14 5
15 5
16 5
17 5
18 5
19 5
20 5
21 0