#include <bits/stdc++.h>
using namespace std;

int main() {
    ifstream f("combinari.in");
    ofstream g("combinari.out");

    int n, k; f >> n >> k;
    for(int mask=0; mask<(1<<n); mask++) {
        if(__builtin_popcount(mask) != k) continue;

        for(int bit=0; bit<n; bit++)
            if((1<<bit) & mask) g << bit+1 << " ";
        g << "\n";
    }
    return 0;
}