#include<iostream>
#include<fstream>

using namespace std;

ifstream fin("royfloyd.in");
ofstream fout("royfloyd.out");

int n, a[1001][1001];

void citire()
{
    int i, j;
    for(i = 1; i <= n; ++i)
        for(j = 1; j <= n; ++j)
            fin >> a[i][j];
}

void roy_floyd()
{
    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] && a[k][j] && (a[i][j] > a[i][k] + a[k][j] || !a[i][j] && i != j))
                    a[i][j] = a[i][k] + a[k][j];
}

void afisare()
{
    for(int i = 1; i <= n; ++i)
    {
        for(int j = 1; j <= n; ++j)
            fout << a[i][j] << " ";
        fout << endl;
    }
}

int main()
{
    fin >> n;
    citire();
    roy_floyd();
    afisare();

    return 0;
}