C3132121111133313233121111331333133313331333133313331333133313232112323233231   >>    C313212111113331323312111133133313331333133313331333133313331323211232323323   <<    C3132121111133313233121111331333133313331333133313331333133313232112323233233   >>      C3132121111133313233121111331333133313331333133313331333133313232112323233232   >>