11061106 SUSTech Online Judge
Problem 1106 --problem5

1106: problem5

Time Limit: 2 Sec  Memory Limit: 64 MB
Submit: 3  Solved: 3
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Description

Input

Output

Sample Input

3 2
0 1
1 0
4 3
1 2 3
1 2 3
1 2 3

Sample Output

2
9

HINT

Source

 

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