(F)????..d(o????)+o(st)o((??))(??@????????)??????(*)(????)????o(????-????)o(????????????)=????????(??????*)(*??????*;)??(F)??????(*??*)=????????(??????*)(??)(o)o((n))o??(??????;)??((??))(~??????)(????????????)~~......o(????)o~
(F)????..d(o????)+o(st)o((??))(??@????????)??????(*)(????)????o(????-????)o(????????????)=????????(??????*)(*??????*;)??(F)??????(*??*)=????????(??????*)(??)(o)o((n))o??(??????;)??((??))(~??????)(????????????)~~......o(????)o~