C1111233131211111211113313331333133313232321333133313112113323132332111121   >>    C111123313121111121111331333133313331323232133313331311211332313233211112   <<    C1111233131211111211113313331333133313232321333133313112113323132332111123   >>      C1111233131211111211113313331333133313232321333133313112113323132332111122   >>