B3311331313231311331322331333132313331322331323133313331323221321123222321   >>    B331133131323131133132233133313231333132233132313331333132322132112322232   <<    B3311331313231311331322331333132313331322331323133313331323221321123222323   >>      B3311331313231311331322331333132313331322331323133313331323221321123222322   >>