#include<stdio.h>
#define nmax 105
int i, j, k, n;
int cmin[nmax][nmax];

void citire()
{
    scanf("%ld",&n);
    for (i=1;i<=n;i++)
        for (j=1;j<=n;j++)
            scanf("%ld",&cmin[i][j]);
}

void rezolvare()
{
    for (k=1;k<=n;k++)
        for (i=1;i<=n;i++)
            for (j=1;j<=n;j++)
                if ((i!=j) && (cmin[i][k]*cmin[k][j]>0) && ((cmin[i][k]+cmin[k][j]<cmin[i][j])||(cmin[i][j]==0)))
                    cmin[i][j]=cmin[i][k]+cmin[k][j];
}

void afisare()
{
    for (i=1;i<=n;i++)
    {
        for (j=1;j<=n;j++)
            printf("%ld ",cmin[i][j]);
        printf("\n");
    }
}

int main()
{
    freopen("royfloyd.in","r",stdin);
    freopen("royfloyd.out","w",stdout);
    citire();
    rezolvare();
    afisare();
    return 0;
}