B33113313132313113313223313331323132313331313232233132311211331323223313221131   >>    B3311331313231311331322331333132313231333131323223313231121133132322331322113   <<    B33113313132313113313223313331323132313331313232233132311211331323223313221133   >>      B33113313132313113313223313331323132313331313232233132311211331323223313221132   >>