Scratch 3

//C#

using System;
using System.IO;
using System.Text;

class Program
{
    static void Main()
    {
        var input = new StreamReader(Console.OpenStandardInput());
        var output = new StreamWriter(Console.OpenStandardOutput());

        string[] parts = input.ReadLine().Split();
        long a = long.Parse(parts[0]);
        long b = long.Parse(parts[1]);

        output.WriteLine(a + b);
        output.Flush();
    }
}

//Java

import java.io.*;
import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));

        StringTokenizer st = new StringTokenizer(br.readLine());
        long a = Long.parseLong(st.nextToken());
        long b = Long.parseLong(st.nextToken());

        out.println(a + b);
        out.flush();
    }
}

#Python
import sys

input_data = sys.stdin.buffer.read().split()
ptr = 0

def next_int():
    global ptr
    val = int(input_data[ptr])
    ptr += 1
    return val

# Ví dụ sử dụng
a = next_int()
b = next_int()

sys.stdout.write(str(a + b))