Odd Even

Time Limit: 2 sec

**The Problem**

Just calculate the sequence below.

**1 + 2 + 3 + ... ... ... + N = M**

In this problem given a positive integer number **N**, your task is to print “**Odd**” if **M** is an odd number otherwise print “**Even**”.

**The Input**

The input file contains several lines of input where each line contains a single positive integer number **N** (**1<=N<=10^14**). The input will terminated by a line containing **0**.

**The Output**

For each lines of input print one line of output which contains “**Even**” if the number **M** is even or “**Odd**” if the number **M** is odd.

**Sample Input**

5

10

19

1002

0

**Sample Output**

Odd

Odd

Even

Odd

Inter University Programming Contest - 2017 [BGC Trust University Bangladesh]

Problem Setter: Milton Deb