C1111233131211111211113313331333133313331333133313331323221123231   >>    C111123313121111121111331333133313331333133313331333132322112323   <<    C1111233131211111211113313331333133313331333133313331323221123233   >>      C1111233131211111211113313331333133313331333133313331323221123232   >>