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I have test many inputs but I still got WA.


#include<iostream>
#include<cstdio>
#include<cstdlib>
#include<cmath>
#include<string>
#include<cstring>
#include<algorithm>
#include<queue>
#include<climits>
#include<stack>
#include<map>
using namespace std;

char dui[55][55][3];
int z[55];
int k ...