#include <iostream>
#include <fstream>

using namespace std;

int n, mc[105][105];

void read(){
    ifstream f("royfloyd.in");
    f >> n;
    for(int i=1; i<=n; i++)
        for(int j=1; j<=n; j++)
            f >> mc[i][j];
}

void royfloyd(){
    for(int k=1; k<=n; k++)
        for(int i=1; i<=n; i++)
            for(int j=1; j<=n; j++)
                if(mc[i][k] && mc[k][j] && (mc[i][j] > mc[i][k] + mc[k][j] || !mc[i][j]) && i!=j)
                    mc[i][j] = mc[i][k] + mc[k][j];
}

void display(){
    ofstream g("royfloyd.out");
    for(int i=1; i<=n; i++){
        for(int j=1; j<=n; j++)
            g << mc[i][j] << " ";
        g << "\n";
    }
}

int main()
{
    read();
    royfloyd();
    display();
    return 0;
}