#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("royfloyd.in");
ofstream fout("royfloyd.out");
int n, a[50][50];

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

void roy()
{
    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<<"\n";
    }
}

int main()
{
    citire();
    roy();
    afisare();
    return 0;
}