#include <stdio.h>
FILE *f = fopen("combinari.in","r");
FILE *g = fopen("combinari.out","w");

int n,m;
int x[100];

void sol(){
   for (int i=1;i<=m;i++)
     fprintf(g,"%d ",x[i]);
   fprintf(g,"\n");
}

void back(int k) {
  if (k==m+1)
    sol();
  else
    for (int i=x[k-1]+1;i<=n;i++) {
      x[k]=i;
      back(k+1);
    }
}

int main(){
  fscanf(f,"%d %d",&n,&m);
  fclose(f);
  back(1);
  fclose(g);
}