4 6 1
2 1 1 
2 4 2 
3 4 1 
3 2 2 
4 2 1 
3 1 3

답: 1

4 6 1
1 2 2 
3 1 2 
1 3 1 
4 2 2 
4 3 1 
3 4 1

답: 1

4 6 1
4 3 3 
3 1 3 
2 1 3 
2 4 2 
3 2 3 
1 2 2

답: 2

4 6 1
4 3 3 
3 1 3 
2 1 3 
2 4 200 
3 2 300 
1 2 200

답: 3

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