C11111333133313232233133313331333133112323131121211113313113323231   >>    C1111133313331323223313331333133313311232313112121111331311332323   <<    C11111333133313232233133313331333133112323131121211113313113323233   >>      C11111333133313232233133313331333133112323131121211113313113323232   >>