C3132121111133313233121111331333133313331333133313331333131133132231232311   >>    C313212111113331323312111133133313331333133313331333133313113313223123231   <<    C3132121111133313233121111331333133313331333133313331333131133132231232313   >>      C3132121111133313233121111331333133313331333133313331333131133132231232312   >>