#include<fstream>
using namespace std;
ifstream F("royfloyd.in");
ofstream G("royfloyd.out");
short n,i,j,k,a[100][100];
int main()
{
    for(F>>n;i<n;++i)
        for(j=0;j<n;F>>a[i][j++]);
    for(;k<n;++k)
        for(i=0;i<n;++i)
            for(j=0;j<n;++j)
                if(i!=j&&a[i][k]&&a[k][j]&&(!a[i][j]||a[i][j]>a[i][k]+a[k][j]))
                    a[i][j]=a[i][k]+a[k][j];
    for(i=0;i<n;G<<'\n',++i)
        for(j=0;j<n;G<<a[i][j++]<<' ');
    return 0;
}