#include <stdio.h>
int n,sol[20],m;
/*int valid(int k){ //verifica daca sol[k] e compatibil cu elementele care sunt deja in sol.
	for(int i=1;i<k;i++)
		if(sol[i]>=sol[k]) 
			return 0;
		return 1;
}*/
void scrie(int k){
	int i;
	for(i=1;i<k;i++)
		printf("%d ",sol[i]);
	printf("\n");
}
void back(int k){ //completeaza sol[k]
	if(k==m+1){
		scrie(k);
		return ;
	}
	for(int i=sol[k-1]+1;i<=n-m+k;i++){
		sol[k]=i;
		back(k+1);
	}
}
int main(){
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	scanf("%d%d",&n,&m);
	back(1);
}