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