#include <fstream>

using namespace std;

int m[100][100];
int n;

ifstream fi;
ofstream fo;

int main()
{
    fi.open("royfloyd.in");
    fi >> n;
    for (int i=1; i<=n; i++)
        for (int j=1; j<=n; j++)
            fi >> m[i][j];
    fi.close();

    // RF
    for (int k=1; k<=n; k++)
        for (int i=1; i<=n; i++)
            if (m[i][k] != 0)
                for (int j=1; j<=n; j++)
                    if ((m[k][j] !=0) && (i!=j))
                        if ((m[i][j] > m[i][k] + m[k][j]) || (m[i][j] == 0))
                            m[i][j] = m[i][k] + m[k][j];
                        //m[i][j] = min(m[i][j], m[i][k] + m[k][j]);

    fo.open("royfloyd.out");
    for (int i=1; i<=n; i++)
    {
        for (int j=1; j<=n; j++)
            fo << m[i][j] << " ";
        fo << "\n";
    }
    fo.close();
}