C111112111133131121133133313331312111133133313331322121111331333132212321   >>    C11111211113313112113313331333131211113313331333132212111133133313221232   <<    C111112111133131121133133313331312111133133313331322121111331333132212323   >>      C111112111133131121133133313331312111133133313331322121111331333132212322   >>