B33113313132313113313223313331323331323112113313331323132313232233132322123221   >>    B3311331313231311331322331333132333132311211331333132313231323223313232212322   <<    B33113313132313113313223313331323331323112113313331323132313232233132322123223   >>      B33113313132313113313223313331323331323112113313331323132313232233132322123222   >>