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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n,k;
int v[20],u[20];
void combinari(int poz) {
if(poz == k + 1) {
for(int i = 1; i < poz; i++) {
fout << v[i] << " ";
}
fout << '\n';
return;
} else {
for(int i = v[poz - 1]; i <= n; i++) {
if(!u[i]) {
v[poz] = i;
u[i] = 1;
combinari(poz + 1);
u[i] = 0;
}
}
}
}
int main() {
fin >> n >> k;
v[0] = 1;
combinari(1);
}