B33113313132313113313223313331323331323112113313331323223313231311331323222121   >>    B3311331313231311331322331333132333132311211331333132322331323131133132322212   <<    B33113313132313113313223313331323331323112113313331323223313231311331323222123   >>      B33113313132313113313223313331323331323112113313331323223313231311331323222122   >>