#include <cstdio>

#define file_in "combinari.in"
#define file_out "combinari.out"

int n,m,p[100];

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

int main(){
	
	freopen(file_in,"r",stdin);
	freopen(file_out,"w",stdout);
	
	scanf("%d %d", &n, &m);
	
	back(1);
	
	return 0;
	
}