#include <iostream>
using namespace std;
int main() {
int n;
cin >> n;
long int a[n][n]{};
for(int i = 0; i < n; i++){
for(int j = 0; j < n; j++){
int k;
cin >> k
if(k==0)
for( int i = )
}
}
for(int i = 0; i < n; i++){
for(int j = 0; j < n; j++){
cout << a[i][j];
}
cout << endl;
}
}
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