C3213322333133313113313221211113313331333131111331322233223323211   >>    C321332233313331311331322121111331333133313111133132223322332321   <<    C3213322333133313113313221211113313331333131111331322233223323213   >>      C3213322333133313113313221211113313331333131111331322233223323212   >>