백준 - 11382

https://www.acmicpc.net/problem/11382

11382번: 꼬마 정민

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Scanner in = new Scanner(System.in);

        long A = in.nextLong();
        long B = in.nextLong();
        long C = in.nextLong();

        System.out.println(A+B+C);

        in.close();
    }
}