#include <stdio.h>
#include <stdlib.h>

FILE *fin , *fout;

int v[19];

int n,k;

void bkt(int pos) {
    if(pos==k+1) {
        for(int i=1;i<=k;i++) {
            fprintf(fout,"%d ",v[i]);
        }
        fprintf(fout,"\n");
    }
    else {
        for(int val=v[pos-1]+1;val<=n;val++) {
            v[pos]=val;
            bkt(pos+1);
        }
    }
}

int main() {
    fin=fopen("combinari.in","r");
    fout=fopen("combinari.out","w");

    fscanf(fin,"%d%d",&n,&k);

    bkt(1);

    fclose(fin);
    fclose(fout);
    return 0;
}