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