integer::N,i
  integer,allocatable::X(:)
  integer::koma=0
  read * ,N
  allocate(X(N))
  read *, X
  do i=1,N
     if(MOD(X(i),2).eq.0) then
        koma = koma + 1
     else
        koma = koma - 1
     end if
  end do

  print '(i0)', ABS(koma)
end program