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 C# (.NET Core 3.1.201) (judge verdict: Accepted)

using System;

namespace ABC068
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine(ABCxxx.AttachABC(Console.ReadLine()));
        }
    }
  
  public class ABCxxx
    {
        public static string AttachABC(string n)
        {
            return "ABC" + n;
        }
    }
}