#include<fstream>
using namespace std;
ifstream F("1.in");
ofstream G("1.out");
int i,j,k,n,a[1000][1000];
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;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]:0,++j);
    for(i=0;i<n;G<<'\n',++i)
        for(j=0;j<n;G<<a[i][j++]<<' ');
    return 0;
}