Make sure someone is not a double agent!

code 1089 will always find a double agent. If the numbers do not add up to 1089 you have found an infiltrator!(sometimes true)
Write down any 3 digit number(first and last digit must differ by at least 2 digits). e.g. 458

Reverse that number and subtract the smaller from the larger. e.g. 854-458

Reverse the new number. e.g. 693

Add the new number and the reverse of it together. e.g. 693+396

what is your total?
comment!