O: Yegp

\: OɾP (_)

m:    
  1 UԦ\      YҨ   ->   OɾP
  2 uC              Y_Ҩ1   ->   OɾP

:

   1 ,   J覡OJIY   
 
   2  _,hؿ  (W[,K)
       A  PXOtX(T)
          1 uJɾP,[ɮM 
          2 uJɮM  
          3 JɾP,[ɮM

      B  PҪOtX(|)
         1 t ---JҪO
         2 k--- JҪO,ե[j
         3 a ---JҪO    
         4 ŨM---JҪO,A[ɮMWh