Description

Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct.

Input format / Clarification:

• Line 1: JSON array of integers

Examples

Input:
[1,2,3,1]
Output:
true

Input:
[1,2,3,4]
Output:
false

Input:
[1,1,1,3,3,4,3,2,4,2]
Output:
true

Note:

Your program must print true or false so it can be compared with the expected output.