#include <iostream>
#include <fstream>

using namespace std;

ifstream f("royfloyd.in");
ofstream g("royfloyd.out");

const int Nmax = 105;
const int oo = (1 << 30);
int N, M, i, j, m[Nmax][Nmax];

void initializare()
{
    for (i = 1; i <= N; i++)
        for (j = 1; j <= N; j++)
        {   
            m[i][j] = oo;
            m[i][i] = 0;
        }
}
void afisare()
{
    for (i = 1; i <= N; i++)
    {   if(i!=1)
        g << '\n';
        for (j = 1; j <= N; j++)
        {
            if (m[i][j] != oo)
                g << m[i][j]<<" ";
            else g << -1<<" ";
        }
    }
}
void roy_floyd()
{
    int k;
    for (k = 1; k <= N; k++)
        for (i = 1; i <= N; i++)
            for (j = 1; j <= N; j++)
                if(m[i][k]!=oo && m[k][i]!=oo)
                    if (m[i][j] > m[i][k] + m[k][j])
                        m[i][j] = m[i][k] + m[k][j];
}
int main()
{
    f >> N;
    initializare();

    for (i = 1; i <= N; i++)
        for (j = 1; j <= N; j++)
            f >> m[i][j];

    roy_floyd();

    afisare();
}