#include<fstream>
using namespace std;
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
int a[500][500],n,i,j,k;
int main()
{
    f>>n;
    for(i=1;i<=n;i++)
        for(j=1;j<=n;j++)
        f>>a[i][j];
     for(int k = 1 ; k <=n; k++)
    {
        for(int i = 1; i<=n;i++)
        {
            for(int j = 1 ; j <=n; j++)
            {
                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];
            }
        }
    }
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=n;j++)
            g<<a[i][j]<<" ";
        g<<"\n";
    }
}