#include <bits/stdc++.h>

using namespace std;

const int N = 1010; //图的最大点数量
int n;
int v[N][N];        //邻接矩阵
/**
 * 测试数据
 4
 0 5 2 3
 5 0 0 1
 2 0 0 4
 3 1 4 0
 */
int main() {
    cin >> n;
    //读入到邻接矩阵
    for (int i = 1; i <= n; i++)
        for (int j = 1; j <= n; j++)
            cin >> v[i][j];

    //下面的代码将找到与点i有直接连接的每一个点以及那条边的长度
    for (int i = 1; i <= n; i++)
        for (int j = 1; j <= n; j++)
            if (v[i][j]) cout << "edge from point "
                              << i << " to point " << j << " with length " << v[i][j] << endl;
    return 0;
}