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#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int s[20],n,m;
void afisare( )
{
for (int i=1;i<=m;i++) fout << s[i] << " ";
fout << "\n";
}
void backt (int k)
{
if (k==m+1)
{
afisare ();
}
else
{
for (int i=s[k-1]+1;i<=n-m+k;i++)
{
s[k]=i;
backt (k+1);
}
}
}
int main()
{
fin >> n >> m;
backt (1);
return 0;
}