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#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n,m;
int x[19];
void AfisareSol()
{
for(int i=1;i<=m;i++) fout<<x[i]<<" ";
fout<<"\n";
}
void Back(int k)
{int i;
for(i=x[k-1]+1;i<=n-m+k;i++)
{x[k]=i;
if(k==m) AfisareSol();
else Back(k+1);
}
}
int main()
{
fin>>n>>m;
Back(1);
fin.close();
fout.close();
return 0;
}