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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n,k,c[19],v[19];
void afisare()
{int i;
for(i=1;i<=k;i++)
fout<<c[i]<<" ";
fout<<"\n";
}
void gen(int t)
{int i;
if(t-1==k) afisare();
else
for(i=c[t-1]+1;i<=n-k+t;i++)
{c[t]=i; gen(t+1);}
}
int main()
{fin>>n>>k;
gen(1);
return 0;
}