C1111233131211111211113313331333133313232321333133313331211113313331333122231   >>    C111123313121111121111331333133313331323232133313331333121111331333133312223   <<    C1111233131211111211113313331333133313232321333133313331211113313331333122233   >>      C1111233131211111211113313331333133313232321333133313331211113313331333122232   >>