B3311331311211331323131231232313231323223313232313331323331323223313232131   >>    B331133131121133132313123123231323132322331323231333132333132322331323213   <<    B3311331311211331323131231232313231323223313232313331323331323223313232133   >>      B3311331311211331323131231232313231323223313232313331323331323223313232132   >>