B3311331313231311331322331333132313331322331323133313231333131113112321   >>    B331133131323131133132233133313231333132233132313331323133313111311232   <<    B3311331313231311331322331333132313331322331323133313231333131113112323   >>      B3311331313231311331322331333132313331322331323133313231333131113112322   >>