#include <bits/stdc++.h>
using namespace std;
int v[21] , n,k;

void Back(int l , int k , int n)
{
    if (l == k)
    {
        for (int i = 1 ; i <= k ; ++i)
            printf("%d " , v[i]);
        printf("\n") ;
    }
    else for(int i = v[l]+1 ; i <= n ; ++i)
    {
        v[l+1] = i;
        Back(l+1,k,n);
    }
}
int main()
{
    freopen("combinari.in" ,"r" , stdin) ;
    freopen("combinari.out" , "w" , stdout) ;
    scanf("%d%d" , &n , &k) ;
        Back(0,k,n); // Combinari de N luate cate K generate

}