#include <cstdio>
#include <algorithm>

using namespace std;
    int n, k;
int main() {
    freopen("combinari.in", "r", stdin);
    freopen("combinari.out", "w", stdout);

    scanf("%d %d", &n, &k);
    int i, j;
//    n = 4; k = 3;
    for (i = 0; i < (1 << n); ++i) if (__builtin_popcount(i) == k) {
        for (j = 0; j < n; ++j) if (i & (1 << j)) printf("%d ", j +1);
        printf("\n");
        }
    return 0;
    }