#include <cstdio>

int n, m;
int st[20];

FILE *f = fopen("combinari.in", "r");
FILE *g = fopen("combinari.out", "w");

void citire(){

    fscanf(f, "%d %d", &n, &m);
}

void afis(){

    for(int i = 1; i <= m; i++)
        fprintf(g,"%d ", st[i]);
    fprintf(g,"\n");
}

void back(int k){

    if(k == m + 1)
        afis();
    else
        for(st[k] = st[k-1] + 1; st[k] <= n - m + k; st[k]++)
            back(k+1);
}

int main(){

    citire();
    back(1);

    return 0;
}