#include <stdio.h>
#include <stdlib.h>
#define MAXN 19
FILE*fi,*fout;
int v[MAXN],n,k;
void comb(int x){
    int i;
    if(x==k+1){
        for(i=1;i<=k;i++)
            fprintf(fout,"%d " ,v[i]);
        fprintf(fout,"\n");
    }
    else
        for(i=v[x-1]+1;i<=n-(k-x);i++){
            v[x]=i;
            comb(x+1);
        }
}
int main(){
    fi=fopen("combinari.in" ,"r");
    fout=fopen("combinari.out" ,"w");
    fscanf(fi,"%d%d" ,&n,&k);
    comb(1);
    fclose(fi);
    fclose(fout);
    return 0;
}