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#include <iostream>
#include <fstream>
using namespace std;
ifstream in("combinari.in");
ofstream out("combinari.out");
int v[10], n, k;
void bkt(int poz){
int i, nr;
if(poz == k + 1){
for(i = 1; i <= k; i++){
out << v[i] << " ";
}
out << '\n';
}
else{
for(nr = v[poz - 1] + 1; nr <= n; nr++){
v[poz] = nr;
bkt(poz + 1);
}
}
}
int main()
{
in >> n >> k;
bkt(1);
return 0;
}