C3132121111133313233121111331333133313331333133313331333133313113123311   >>    C313212111113331323312111133133313331333133313331333133313331311312331   <<    C3132121111133313233121111331333133313331333133313331333133313113123313   >>      C3132121111133313233121111331333133313331333133313331333133313113123312   >>