B33113313132313113313223313331323331323321133133313331323132313221232322121   >>    B3311331313231311331322331333132333132332113313331333132313231322123232212   <<    B33113313132313113313223313331323331323321133133313331323132313221232322123   >>      B33113313132313113313223313331323331323321133133313331323132313221232322122   >>