B33113313132313113313223313331323133313233313332213331323132322131   >>    B3311331313231311331322331333132313331323331333221333132313232213   <<    B33113313132313113313223313331323133313233313332213331323132322133   >>      B33113313132313113313223313331323133313233313332213331323132322132   >>