C1111233131211111211113313331333133313331333133313331333133313223323132321   >>    C111123313121111121111331333133313331333133313331333133313331322332313232   <<    C1111233131211111211113313331333133313331333133313331333133313223323132323   >>      C1111233131211111211113313331333133313331333133313331333133313223323132322   >>