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

const int INF=1e9;

int main()
{
    ifstream reader ("royfloyd.in");
    ofstream writer ("royfloyd.out");
    int n;
    reader>>n;
    int a[n][n];
    for(int i=0;i<n;++i)
        for(int j=0;j<n;++j)
        {
            reader>>a[i][j];
            if(i!=j&&a[i][j]==0)
                a[i][j]=INF;
        }
    for(int k=0;k<n;++k)
        for(int i=0;i<n;++i)
            for(int j=0;j<n;++j)
                if(a[i][k]+a[k][j]<a[i][j])
                    a[i][j]=a[i][k]+a[k][j];
    for(int i=0;i<n;++i)
    {
        for(int j=0;j<n;++j)
            if(a[i][j]==INF) writer<<0<<" ";
            else writer<<a[i][j]<<" ";
        writer<<'\n';
    }
    return 0;
}