#include<stdio.h>
short int sol[20]={0};
int p, n;

void back(int k){
	if(k==p+1){
		for(int i=1; i<=p; ++i)
			printf("%d ", sol[i]);
		printf("\n");
		return;
	}
	for(int i=sol[k-1]+1; i<=n-p+k; ++i){
		sol[k]=i;
		back(k+1);
	}
}



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