import java.util.Scanner;

public class Xranda {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		int a,b,w,n =  sc.nextInt();
		int m[][] = new int[n][n];

		for (int i = 0; i < n-1; i++) {
			a = sc.nextInt();
			b= sc.nextInt();
			w = sc.nextInt();
			m[a-1][b-1] = w;
			m[b-1][a-1] = w;
		}
		for (int i = 0; i < m.length; i++) {
			for (int j = i + 1; j < m.length; j++) {
				if(m[i][j] == 0) {
					int posx = i+1;
					while(m[i][posx] != 0) {
						m[i][j] = m[posx][j];
						m[j][i] = m[posx][j];
					}
				}
			}
		}
		for (int i = 0; i < m.length; i++) {
			for (int j = 0; j < m.length; j++) {
				System.out.print(m[i][j] + " ");
			}
			System.out.println();
		}

	}

}
			System.out.println();
		}

	}

}