C3213322333133313113313221211113313331333131111331322222133233232331   >>    C321332233313331311331322121111331333133313111133132222213323323233   <<    C3213322333133313113313221211113313331333131111331322222133233232333   >>      C3213322333133313113313221211113313331333131111331322222133233232332   >>