#include <fstream>
#include <iostream>

using namespace std;

#define PInfinit 1.e20
int n,a[101][101];

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

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

void Lungime_Drumuri()
{
    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 Drum(int i, int j)
{
    int gasit=0,k;
    for(k=1;((k<=n) && (!gasit));k++)
    {
        if(i!=k && j!=k && a[i][j]==a[i][k]+a[k][j])
        {
            Drum(i,k);Drum(k,j);
            gasit=1;
        }
    }
    if(!gasit) cout<<j<<' ';

}

void Scriu_Drum(int Nod_Initial, int Nod_Final)
{
    int i,j;
    if(a[i][j]<PInfinit)
    {
        cout<<"Drumul de la "<<Nod_Initial<<" la "<<Nod_Final<<" are costul de "<<a[Nod_Initial][Nod_Final]<<'\n'<<Nod_Initial<<' ';
        Drum(Nod_Initial,Nod_Final);
    }
}

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();
    Lungime_Drumuri();
    Afisare();
}