#include <stdio.h>
#include <algorithm>

using namespace std;

int n;
int t[110][110];

int main()
{
    //freopen("1.in","r",stdin);
    freopen("royfloyd.in","r",stdin);
    freopen("royfloyd.out","w",stdout);

    scanf("%d",&n);

    for (int i=1;i<=n;i++)
        for (int j=1;j<=n;j++)
            scanf("%d",&t[i][j]);

    for (int k=1;k<=n;k++)
        for (int i=1;i<=n;i++)
            for (int j=1;j<=n;j++)
                if (i!=j && t[i][k]!=0 && t[k][j]!=0) {
                    if (t[i][j]==0) t[i][j]=t[i][k]+t[k][j]; else
                       t[i][j]=min(t[i][j],t[i][k]+t[k][j]);
                }

    for (int i=1;i<=n;i++,printf("\n"))
        for (int j=1;j<=n;j++)
            printf("%d ",t[i][j]);

    return 0;
}