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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