C3213322333133313113313221211113313331333131111331322222133233222321   >>    C321332233313331311331322121111331333133313111133132222213323322232   <<    C3213322333133313113313221211113313331333131111331322222133233222323   >>      C3213322333133313113313221211113313331333131111331322222133233222322   >>