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#include <iostream>
#include <fstream>
using namespace std;
ifstream f ("combinari.in");
ofstream g ("combinari.out");
int n, k, x[30];
void afisare ()
{
int i;
for (i=1; i<=k; i++)
g << x[i] << ' ';
g << '\n';
}
void C (int i)
{
int val;
for (val=x[i-1]+1; val<=n-k+i; val++)
{
x[i]=val;
if (i==k)
afisare();
else
C(i+1);
}
}
int main()
{
f >> n >> k;
C(1);
}