#include <fstream.h>
#include <iostream.h>
#include <stdio.h>
using namespace std;
int a[20][20],n,m;
void citire_matrice_adiac()
{int i,j;
 ifstream f("roy.in");
 f>>n;
 for(i=1;i<=n;i++)
 for(j=1;j<=n;j++)
 f>>a[i][j];
 f.close();
}
void Roy_Warshall()
{int i,j,k;
 for(k=1;k<=n;k++)
  for(i=1;i<=n;i++)
    for(j=1;j<=n;j++)
     if(a[i][j]!=0&&a[j][k]!=0&&i!=j&&a[i][j]>a[i][k]+a[k][j]||a[i][j]==0) 
     a[i][j]>a[i][k]+a[k][j];
}

void afisare_matrice ()
 {int i,j;
 ofstream g("roy.out");
 for(j=1;j<=n;j++)
 g<<a[1][j]<<" ";
 for(i=2;i<=n;i++)
 {g<<"\n";
 for(j=1;j<=n;j++)
 g<<a[i][j]<<" ";
 }
 g.close();
}
int main()
{citire_matrice_adiac();
 Roy_Warshall();
 afisare_matrice();
 return 0;
}