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 Java7 (OpenJDK 1.7.0) (judge verdict: Accepted)

import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.InputMismatchException;
import java.io.IOException;
import java.io.InputStream;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 *
 * @author Abhilash Mandaliya
 */
public class Main {
    public static void main (String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader( inputStream );
        PrintWriter out = new PrintWriter( outputStream );
        TaskA solver = new TaskA();
        solver.solve( 1, in, out );
        out.close();
    }

    static class TaskA {
        public void solve (int testNumber, InputReader in, PrintWriter out) {
            out.println( "ABC" + in.nextInt() );
        }

    }

    static class InputReader {
        private final InputStream stream;
        private final byte[] buf = new byte[8192];
        private int curChar;
        private int snumChars;

        public InputReader (InputStream st) {
            this.stream = st;
        }

        public int read () {
            if ( snumChars == - 1 )
                throw new InputMismatchException();
            if ( curChar >= snumChars ) {
                curChar = 0;
                try {
                    snumChars = stream.read( buf );
                } catch ( IOException e ) {
                    throw new InputMismatchException();
                }
                if ( snumChars <= 0 )
                    return - 1;
            }
            return buf[curChar++];
        }

        public int nextInt () {
            int c = read();
            while ( isSpaceChar( c ) ) {
                c = read();
            }
            int sgn = 1;
            if ( c == '-' ) {
                sgn = - 1;
                c = read();
            }
            int res = 0;
            do {
                res *= 10;
                res += c - '0';
                c = read();
            } while ( ! isSpaceChar( c ) );
            return res * sgn;
        }

        public boolean isSpaceChar (int c) {
            return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == - 1;
        }

    }
}