C1111233131211111211113313331333133313331333133313331333133313232321131111   >>    C111123313121111121111331333133313331333133313331333133313331323232113111   <<    C1111233131211111211113313331333133313331333133313331333133313232321131113   >>      C1111233131211111211113313331333133313331333133313331333133313232321131112   >>