#include <iostream>
#include <fstream>
#include <cstring>
using namespace std;

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

int n,i,j,k,v[1001][1001];
void citire()
{
    f>>n;
    for(i=1;i<=n;i++)
        for(j=1;j<=n;j++)
        f>>v[i][j];
}
void royfloyd()
{
    for(k=1;k<=n;k++)
        for(i=1;i<=n;i++)
            for(j=1;j<=n;j++)
                if(v[i][k]!=0 and v[k][j]!=0 and (v[i][j]>v[i][k]+v[k][j] or v[i][j]==0) and i!=j)
                v[i][j]=v[i][k]+v[k][j];
}
void afisare()
{
    for(i=1;i<=n;i++ and g<<endl)
        for(j=1;j<=n;j++)
        g<<v[i][j]<<" ";
}
int main()
{
    citire();
    royfloyd();
    afisare();
    return 0;
}