#include <fstream>

using namespace std;

int a[101][101];

int main()
{
    ifstream f("royfloyd.in");
    ofstream g("royfloyd.out");
    int n ;
    f >> n;
    int i , j,k;
    for(i=1;i<=n;++i)
        for(j=1;j<=n;++j)
            f >> a[i][j];

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

    return 0;
}