B3311331313231311331322331333132333133313231332113313331333132322131321   >>    B331133131323131133132233133313233313331323133211331333133313232213132   <<    B3311331313231311331322331333132333133313231332113313331333132322131323   >>      B3311331313231311331322331333132333133313231332113313331333132322131322   >>