C1111133313331323223313331333133313331323131211113312111133222123313231121   >>    C111113331333132322331333133313331333132313121111331211113322212331323112   <<    C1111133313331323223313331333133313331323131211113312111133222123313231123   >>      C1111133313331323223313331333133313331323131211113312111133222123313231122   >>