#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);   
}