program main
  implicit none
  logical::dp(-8:8,-8:8),dp2(-8:8,-8:8)
  integer::i,j,k
  integer*8::X,Y
  data dp/289*.false./
  read *,X,Y
  if(abs(X).gt.6.or.abs(Y).gt.6) then
     print '(a)',"NO"
     return
  end if

  dp(0,0)=.true.
  do k=1,3
     dp2 = dp
     do i=-6,6
        do j=-6,6
           dp2(i,j) = &
                dp(i-1,j-2).or. &
                dp(i+1,j+2).or. &
                dp(i-1,j+2).or. &
                dp(i+1,j-2).or. &
                dp(i-2,j-1).or. &
                dp(i+2,j+1).or. &
                dp(i-2,j+1).or. &
                dp(i+2,j-1)
        end do
     end do
     dp = dp.or.dp2
  end do
  if(dp(X,Y).eqv..true.) then
     print '(a)',"YES"
  else
     print '(a)',"NO"
  end if

end program main