#include <iostream>
#include <fstream>

using namespace std;

const int pinf=1000000;

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

int n,m,a[110][110];

int main()
{
    int i,j,c,k;
    fin>>n;
    for (i=1;i<=n;i++)
        for (j=1;j<=n;j++)
        {
            fin>>a[i][j];
            if (i==j)
                a[i][j]=0;
            else if (a[i][j]==0)
                a[i][j]=pinf;
        }
    for (k=1;k<=m;k++)
    {
        fin>>i>>j>>c;
        a[i][j]=c;
    }
    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++)
            if (a[i][j]==pinf)
                fout<<0<<" ";
            else
                fout<<a[i][j]<<" ";
        fout<<'\n';
    }
    return 0;
}