#include<cstdio>

long st[20],n,i,k,m;

void back(long k){
	long i;
	if(k>m){
		for(i=1;i<=m;i++)
			printf("%ld ",st[i]);
		printf("\n");
	}
	else
		for(i=st[k-1]+1;i<=n;i++){
			st[k]=i;
			back(k+1);
		}
}

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