integer,allocatable::GD(:,:)
  integer,parameter::experiment=30000,time=6
  integer::N,i,j,temp
  logical::pos=.false.

  read *,N
  allocate(GD(2,N))
  read *,GD

  do i=1, N
     temp = GD(1,i)-experiment*GD(2,i)
     if(temp.ge.experiment*100/time) then
        print '(a)',"YES"
        do j=1,6
           print '(i0)',i
        end do
        return
     end if
  end do

  print '(a)',"NO"
end program