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#include <fstream>
#define MAXN 19
using namespace std;
short a[MAXN], n, k;
ofstream g("combinari.out");
void Write()
{
for (int i=0;i<k;i++) g<<a[i]<<' ';
g<<'\n';
}
void comb(int j)
{
if (j==k) Write();
else if (j==0)
{
for (int i=1;i<=n-k+1;i++)
{
a[j]=i;
comb(j+1);
}
}
else
{
for (int i=a[j-1]+1;i<=n-k+j+1;i++)
{
a[j]=i;
comb(j+1);
}
}
}
int main()
{
ifstream f("combinari.in");
f>>n>>k;
comb(0);
}