   Program PanasonicC
   Implicit none
   Integer::a,b,c

      Read(*,*) a,b,c
      If (SQRT(REAL(a))+SQRT(REAL(b))<SQRT(REAL(c))) then
         Write(*,*) 'Yes'
      Else
         Write(*,*) 'No'
      End If
      Stop

   End Program PanasonicC