Problem:
Score : 100 points

Problem Statement

This contest, AtCoder Beginner Contest, is abbreviated as ABC.

When we refer to a specific round of ABC, a three-digit number is appended after ABC. For example, ABC680 is the 680th round of ABC.

What is the abbreviation for the N-th round of ABC? Write a program to output the answer.

Constraints

100 ≤ N ≤ 999

Input

Input is given from Standard Input in the following format:

N

Output

Print the abbreviation for the N-th round of ABC.

Sample Input 1

100

Sample Output 1

ABC100

The 100th round of ABC is ABC100.

Sample Input 2

425

Sample Output 2

ABC425

Sample Input 3

999

Sample Output 3

ABC999

Solution in PHP7 (7.0.15) (judge verdict: Accepted)

<?php
/*
    Problem URL : https://beta.atcoder.jp/contests/abc068/tasks/abc068_a

    Score  :
    Result :
    Time   : ms
    Memory : KB
 */

// define('DEBUG', true);
define('DEBUG', false);

ini_set('error_reporting', E_ALL & ~E_NOTICE);

fscanf(STDIN, "%s", $N);

printf("ABC%s\n", $N);