#include <stdio.h>

int n;
int a[1005][1005];
int zd[1005][1005];
int zx[1005][1005];

int main() {
    scanf("%d", &n);
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            scanf("%d", &a[i][j]);
        }
    }
    for (int i = 0; i < n; i++) {
        int minj = -1, minn = 1e9;
        for (int j = 0; j < n; j++) {
            if (a[i][j] < minn) {
                minj = j;
                minn = a[i][j];
            }
        }
        zd[i][minj] = 1;
    }
    for (int i = 0; i < n; i++) {
        int maxj = -1, maxn = -1;
        for (int j = 0; j < n; j++) {
            if (a[j][i] > maxn) {
                maxj = j;
                maxn = a[j][i];
            }
        }
        zx[maxj][i] = 1;
    }
    int flag = 0;
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            if (zd[i][j] && zx[i][j]) {
                flag = 1;
                printf("%d %d %d\n", i + 1, j + 1, a[i][j]);
            }
        }
    }
    if (!flag)
        printf("None");
    return 0;
}