UVa 441 - Lotto

// UVa 441 - Lotto
#include <iostream>
using namespace std;

int a[13], b[6];
int n;

void comb(int i, int j) {
	if (i == 6) {
		for (int k = 0; k < 5; k++)
			cout << b[k] << " ";
		cout << b[5] << endl;
	} else {
		for (int k = j; k <= n - (6 - i); k++) {
			b[i] = a[k];
			comb(i + 1, k + 1);
		}
	}
}

int main() {

	cin >> n;
	bool blank = false;
	while (n != 0) {
		for (int i = 0; i < n; i++)
			cin >> a[i];
		if (blank)
			cout << endl;
		comb(0, 0);
		blank = true;
		cin >> n;
	}

	return 0;
}