program probB
  implicit none
  integer n,d,x
  integer i,j,k,ans
  integer a(1:100)
  

  read(*,*) n
  read(*,*) d,x
  
  do i=1,n
     read(*,*) a(i)
  end do

  ans = 0
  do i=1,n
     j=0
     do while(j*a(i)+1<=D)
        ans = ans + 1
        j=j+1
     end do
  end do
    
  write(*,*) ans+x
  
   
end program probB

