C3132121111133313233121111331333133313331333133313331333112223311   >>    C313212111113331323312111133133313331333133313331333133311222331   <<    C3132121111133313233121111331333133313331333133313331333112223313   >>      C3132121111133313233121111331333133313331333133313331333112223312   >>