#include <stdio.h>


 int main()
  {FILE *f;
   int a[100][100],n,i,j,k;

   f=fopen("royfloyd.in","r");
   fscanf(f,"%d",&n);
   for (i=1;i<=n;i++)
     for (j=1;j<=n;j++)
         fscanf(f,"%d",&a[i][j]);
   fclose(f);

   for (i=1;i<=n;i++)
      for (j=1;j<=n;j++)
        for (k=1;k<=n;k++)
         if ((a[i][k]!=0)&&(a[k][j]!=0)&&((a[i][j]>a[i][k]+a[k][j])||((a[i][j]==0)&&(i!=j)))) a[i][j]=a[i][k]+a[k][j];

   f=fopen("royfloyd.out","w");
   for (i=1;i<=n;i++)
      {for (j=1;j<=n;j++)
           fprintf(f,"%d ",a[i][j]);
        fprintf(f,"\n");
        }
   fclose(f);

   }