#include<cstdio>
using namespace std;
int i, n, k, sol[101];
void rec(int poz){
    int i;
    if (poz==k) {for (i=1;i<=k;i++) printf("%d ", sol[i]); printf("\n");}
    else for (i=sol[poz]+1;i<=n;i++) {
        sol[poz+1]=i;
        rec(poz+1);
    }
}
int main(){
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    scanf("%d%d", &n, &k);
    rec(0);
    return 0;
}