#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <string>
#include <vector>
#include <algorithm>
#include <cmath>

using namespace std;

int n, m, a;

int main(void) {
	scanf("%d %d", &n, &m);
	for(int i = 0; i < n; ++i) 
		for(int j = 0; j < m + 4; ++j) 
			scanf("%d", &a);

	printf("-1\n");
	//system("pause");
	return 0;
}