C22121333132313311211113313331333132233131133133313331322231121   >>    C2212133313231331121111331333133313223313113313331333132223112   <<    C22121333132313311211113313331333132233131133133313331322231123   >>      C22121333132313311211113313331333132233131133133313331322231122   >>