#include <iostream>
#include<fstream>
#define nmax 1005

using namespace std;
    ifstream f("royfloyd.in");
    ofstream g("royfloyd.out");

int a[nmax][nmax], n;

int roy( int n)
  { for( int k=1; k<=n; k++)
        for( int i=1; i<=n; i++)
            for( int j=1; j<=n; j++)
            if(a[i][k] and a[k][j] and (a[i][j]>a[i][k]+a[k][j] or !a[i][j] and i!=j)) a[i][j]=a[i][k]+a[k][j];
  }
int main()
{   f>>n;
    for(int i=1; i<=n; i++)
        for(int j=1; j<=n; j++) f>>a[i][j];

roy(n);

    for( int i=1; i<=n; i++) {
            for( int j=1; j<=n; j++) g<<a[i][j]<<" ";
                        g<<"\n"; }
    return 0;
}