#include<fstream>
using namespace std;
const int inf=15000;
int c[100][100],n;
ifstream f("date.in");
ofstream g("date.out");

void citire()
{ int i,j,x,y,cost;
  f>>n;
  for(i=1;i<=n;i++)
    for(j=1;j<=n;j++)
      if(i==j) c[i][j]=0;
      else c[i][j]=inf;
  for(i=1;i<n;i++)
    { f>>x>>y>>cost;
      c[y][x]=c[x][y]=cost;
    }
}

void rf()
{ int i,j,k;
  for(k=1;k<=n;k++)
      for(i=1;i<=n;i++)
	 for(j=1;j<=n;j++)
	   if(c[i][j]>c[i][k]+c[k][j])
	       c[i][j]=c[i][k]+c[k][j];
}

void afis()
{ int i,j;
  for(i=1;i<=n;i++)
      {	 for(j=1;j<=n;j++)
            g<<c[i][j]<<" ";
	 g<<endl;
     }
}

int main()
 { citire();
   rf();
   afis();
   f.close();
   g.close();
   return 0;
}

5
1 2 4
1 3 5
2 4 6
4 5 1

0 4 5 10 11 
4 0 9 6 7 
5 9 0 15 16 
10 6 15 0 1 
11 7 16 1 0