#include <cstdio>

using namespace std;

#define NMAX 500

int A[NMAX][NMAX];
int i,j,N;

void Roy_Floyd()
{
    int i,j,k;

    for (k=1;k<=N;++k)
       for (i=1;i<=N;++i)
         for (j=1;j<=N;++j)
           {
               if (i==j) continue;

               if (!A[i][k] || !A[k][j]) continue;

               if (A[i][j]>0 && A[i][j]<=A[i][k]+A[k][j]) continue;

               A[i][j]=A[i][k]+A[k][j];
           }
}

int main()
{
    freopen("royfloyd.in","r",stdin);
    freopen("royfloyd.out","w",stdout);

    scanf("%d",&N);

    for (i=1;i<=N;++i)
       for (j=1;j<=N;++j)
         scanf("%d",&A[i][j]);

    Roy_Floyd();

    for (i=1;i<=N;++i)
       for (j=1;j<=N;++j)
        (j<N) ? printf("%d ",A[i][j]) : printf("%d\n",A[i][j]);

    return 0;
}