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.

Input

Input is given from Standard Input in the following format:
N

Output

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

Constraints

• 100 ≤ N ≤ 999

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

见题面 Input 部分

见题面 Output 部分