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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int perm[18];
bool cif[18];
void permutare(int n , int k, int nr)
{
int i;
if(nr==k)
{
for(i=0; i<k; i++)
fout<<perm[i]<<" ";
fout<<"\n";
}
else
{
int start;
if(nr==0)
start=1;
else
start= perm[nr-1]+1;
for(i=start; i<=n; i++)
{
perm[nr]=i;
permutare(n , k , nr+1);
}
}
}
int main()
{
int n , k;
fin>>n>>k;
permutare(n, k, 0);
return 0;
}