#include <stdio.h>
int n,m,x[19];

void afish(){
     int i;
     for(i=1;i<=m;i++)
         printf("%d ",x[i]);
     printf("\n");
}

void back(int k){
	int i;
	for(i=x[k-1]+1;i<=n;i++){
		x[k]=i;
        if(k==m)
            afish();
        else
            back(k+1);
    }
}

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