C1111233131211111211113313331333133313232321333133313331311233132323131   >>    C111123313121111121111331333133313331323232133313331333131123313232313   <<    C1111233131211111211113313331333133313232321333133313331311233132323133   >>      C1111233131211111211113313331333133313232321333133313331311233132323132   >>