C3132121111133313233121111331333133313331333133313331333133323321311   >>    C313212111113331323312111133133313331333133313331333133313332332131   <<    C3132121111133313233121111331333133313331333133313331333133323321313   >>      C3132121111133313233121111331333133313331333133313331333133323321312   >>