#include<stdio.h>
int n,k,s[10];
void afis(int k){
	int i;
	for(i=1;i<=k;++i)
		printf("%d ",s[i]);
	printf("\n");
}
void comb(int p){
	int i;
	if(p==k+1)
		afis(k);
	else
		for(i=s[p-1]+1;i<=n-k+p;++i){
			s[p]=i;
			comb(p+1);
		}
}  
int main(){
	int i;
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	scanf("%d%d",&n,&k);
	for(i=1;i<=n;++i)
		s[i]=i;
	comb(1);
	fclose(stdin);
	fclose(stdout);
	return 0;
}