Print the frequency of each distinct element.

Difficulty: Medium

Phase: 4 · Basic Arrays

XP Reward: 20 XP

Topics: Basic Arrays, Medium

Supported Languages: Python, JavaScript, C, C++, Java

Problem Description

Given N followed by N integers, print each distinct element in order of appearance followed by its frequency in format 'elem: count'. Input Format: Read input from standard input (stdin). Output Format: Print the result to standard output (stdout).

Constraints

-10^9 <= N <= 10^9

Examples

Example 1

Input: 5 1 2 2 3 3

Output: 1: 1 2: 2 3: 2

Explanation: Sample execution for input 5 1 2 2 3 3