## 2013年1月13日 星期日

### 10306 - e-Coins

3
2 5
0 2
2 0
3 20
0 2
2 0
2 1
3 5
3 0
0 4
5 5

not possible
10
2

(Joint Effort Contest, Problem Source: Swedish National Programming Contest, arranged by department of Computer Science at Lund Institute of Technology.)