C11111333133313232233133313331333133112323131121211113313232112231   >>    C1111133313331323223313331333133313311232313112121111331323211223   <<    C11111333133313232233133313331333133112323131121211113313232112233   >>      C11111333133313232233133313331333133112323131121211113313232112232   >>