Relative Primes

Write a program that reads two positive integers from the standard input and decides whether they are relative primes or not.

Input Specification

The input contains two positive integers separated by a space character.

Output Specification

The program should write a single line to the standard output containing the string „IGEN” („yes” in Hungarian) or „NEM” („NO” in Hungarian) depending on whether the two input numbers are relative primes.

Sample Input 1

1. 15 10

Output for Sample Input 1

1. NEM

Sample Input 2

1. 2 7

Output for Sample Input 2

1. IGEN