本题是熟悉评测环境的入门题目

Python

import sys
a, b = map(int, sys.stdin.read().split())
print(a + b)

C++

#include<bits/stdc++.h>
using namespace std;
int main(){
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	int a, b;
	cin >> a >> b;
	cout << a + b;
}

Java

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

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        long a = sc.nextLong();
        long b = sc.nextLong();
        System.out.println(a + b);
        sc.close();
    }
}

Pascal

program Main;
var
  a, b: Int64;
begin
  readln(a, b);
  writeln(a + b);
end.