B3311331313231311331322331333132313331322331323133313231323323132322131   >>    B331133131323131133132233133313231333132233132313331323132332313232213   <<    B3311331313231311331322331333132313331322331323133313231323323132322133   >>      B3311331313231311331322331333132313331322331323133313231323323132322132   >>