program poor
  implicit none
  integer :: a, b, c, x, y, z
  read(*,*) a, b, c
  x = min(a,b,c)
  z = max(a,b,c)
  if (x == z) then
    write(*,'(a)') "No"
    stop
  end if
  y = a+b+c-x-z
  if (y == x .or. y == z) then
    write(*,'(a)') "Yes"
  else
    write(*,'(a)') "No"
  end if
end program poor