B33113313132313113313223313331323132322331313113313331323331323312121   >>    B3311331313231311331322331333132313232233131311331333132333132331212   <<    B33113313132313113313223313331323132322331313113313331323331323312123   >>      B33113313132313113313223313331323132322331313113313331323331323312122   >>