B33113313132313113313223313331323223313123113313231323331323132313232211331   >>    B3311331313231311331322331333132322331312311331323132333132313231323221133   <<    B33113313132313113313223313331323223313123113313231323331323132313232211333   >>      B33113313132313113313223313331323223313123113313231323331323132313232211332   >>