#include <iostream>

using namespace std;

int n,k,v[20];

void out (int v[20]){
     for (int i=1; i<=k; i++){
         printf("%d ", v[i]);
	 }
     printf("\n");
     
}

void comb(int h){
     if (h>k){
              out (v);
     }
     else {
          for ( int j=v[h-1]+1; j<=n-(k-h); j++){
			  v[h]=j;
              comb(h+1);
          }
          }
}

int main(){
    freopen ("combinari.in", "r", stdin);
    freopen ("combinari.out", "w", stdout);
    scanf("%d %d", &n, &k);
    comb(1);
    fclose(stdin);
    fclose(stdout);
    return 0;
}