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#include <iostream>
#include <fstream>
std::ifstream in("combinari.in");
std::ofstream out("combinari.out");
using namespace std;
int n ,k;
int sol[20];
bool esol(int t)
{
return (t == k);
}
void afis()
{
for(int i = 1;i<=k ; i++)
out<<sol[i]<<" ";
out<<'\n';
}
void backt(int t)
{
for(int i = sol[t-1] + 1; i <= n; i++)
{
sol[t] = i;
if(esol(t))
afis();
else backt(t+1);
}
}
int main()
{
in>>n>>k;
backt(1);
return 0;
}