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#include<bits/stdc++.h>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
const int NMAX = 21;
int v[NMAX], n, k;
void afisare()
{
int i;
for(i = 1; i <= k; i++)
fout<< v[i]<<" ";
fout<<'\n';
}
void bkt(int poz)
{
int i;
for(i = v[poz-1]+1; i <= n; i++)
{
v[poz] = i;
if(poz == k)
afisare();
else
bkt(poz+1);
}
}
int main()
{
fin>> n>> k;
bkt(1);
fin.close();
fout.close();
return 0;
}