C3132121111133313233121111331333133313331333133313331333133313331313123311   >>    C313212111113331323312111133133313331333133313331333133313331333131312331   <<    C3132121111133313233121111331333133313331333133313331333133313331313123313   >>      C3132121111133313233121111331333133313331333133313331333133313331313123312   >>