B33113313132313113313223313331323331323321133133313331333132233131312121   >>    B3311331313231311331322331333132333132332113313331333133313223313131212   <<    B33113313132313113313223313331323331323321133133313331333132233131312123   >>      B33113313132313113313223313331323331323321133133313331333132233131312122   >>