#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 and a[i][j]==0)
                a[i][j]=inf;
        }
    for(int i=0;i<n;++i)
        for(int j=0;j<n;++j)
            for(int h=0;h<n;++h)
                if(a[j][i]+a[i][h]<a[j][h])
                    a[j][h]=a[j][i]+a[i][h];
    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;
}