#include<stdio.h>

int k,cont,stiva[20],n,m,c[20],i;

int main (){
	
	FILE *f = fopen("combinari.in","r");
	FILE *g = fopen("combinari.out","w");
	
	fscanf(f,"%d %d",&n,&m);
	
	k=1;
	stiva[k]=0;
	
	while (k>0){
		
		if (stiva[k]<n){
			cont=1;
			stiva[k]++;
			
			
			if (c[stiva[k]]==1) 
				cont = 0;
			else 
				c[stiva[k]]=1;
			
			if (cont==1) 
				if (k==m){
					for (i=1;i<=m;i++)
						fprintf(g,"%d ",stiva[i]);
					fprintf(g,"\n");
					c[stiva[k]]=0;
					}
				else{
					k++;
					stiva[k]=stiva[k-1];
				}
		}
		
		else{
			c[stiva[k]]=c[stiva[k-1]]=0;
			k--;
		}
	}
	
	
	fclose(f);
	fclose(g);
	return 0;
}