C1111233131211111211113313331333133313221211113313331333133313232321333132231   >>    C111123313121111121111331333133313331322121111331333133313331323232133313223   <<    C1111233131211111211113313331333133313221211113313331333133313232321333132233   >>      C1111233131211111211113313331333133313221211113313331333133313232321333132232   >>