Problem2412--ABC264C-Matrix Reducing

2412: ABC264C-Matrix Reducing

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Time Limit : 1.000 sec  Memory Limit : 128 MB

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Description



Sample Input Copy 

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

Sample Output Copy 

Yes

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Source/Category

AtCoder 
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