local n = io.read("*n")
local g, d = {}, {}
for i = 1, n do
  g[i], d[i] = io.read("*n", "*n")
end
local found = false
for i = 1, n do
  if(500000 <= g[i] - 30000 * d[i]) then
    print("YES")
    for j = 1, 6 do print(i) end
    found = true
    break
  end
end
if(not found) then print("NO") end