B3311331313231311331322331333132333133313231332113313331333133321123122331   >>    B331133131323131133132233133313233313331323133211331333133313332112312233   <<    B3311331313231311331322331333132333133313231332113313331333133321123122333   >>      B3311331313231311331322331333132333133313231332113313331333133321123122332   >>