#include <iostream>
#include <fstream>
#include <climits>

using namespace std;

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

int n,a[305][305]={0},i,j,k;

int main (){
    fin>>n;
    for(i=1;i<=n;i++)
        for(j=1;j<=n;j++){
            fin>>a[i][j];
            if(a[i][j]==0 && j!=i)
                a[i][j]=1000005;
        }

    for(k=1;k<=n;k++)
        for(i=1;i<=n;i++)
            for(j=1;j<=n;j++)
                if(a[i][j]>a[i][k]+a[k][j])
                    a[i][j]=a[i][k]+a[k][j];

    for(i=1;i<=n;i++){
        for(j=1;j<=n;j++)
            fout<<a[i][j]<<" ";
        fout<<"\n";
    }

    return 0;
}