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Problem 3198. -- [Sdoi2013]spring

3198: [Sdoi2013]spring

Time Limit: 40 Sec  Memory Limit: 256 MB
Submit: 1332  Solved: 424
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Description

Input

Output

Sample Input

3 3
1 2 3 4 5 6
1 2 3 0 0 0
0 0 0 4 5 6

Sample Output

2

HINT


Dragonite修正数据

Source

Hash

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