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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin ("combinari.in");
ofstream fout ("combinari.out");
int n,k, x[20];// n si k <= 18
void read()
{
fin >> n >> k;
}
void back( int nr)
{
if (nr == k)
{
for (int i = 1; i <= k; i++)
fout << x[i]<< ' ';
fout << endl;
}
else
{
for (int i = x[nr] + 1; i <= n; i++)
{
x[nr + 1] = i;
back(nr + 1);
}
}
}
int main ()
{
read();
back(0);
}