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These programs read in two integers on the same line, and output their sum.

Turing

var a, b : int
get a, b
put a + b

Java

import java.io.*;

public class ClassName{
	public static void main(String[] args) throws IOException{
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		String[] tokens = in.readLine().split(" ");
		int a = Integer.parseInt(tokens[0]);
		int b = Integer.parseInt(tokens[1]);
		System.out.println(a + b);
	}
}

Java Alternate Method (May be too slow with large inputs)

java.util.Scanner;

public class ClassName{
	public static void main(String[] args){
		Scanner in = new Scanner(System.in);
		int a = in.nextInt();
		int b = in.nextInt();
		System.out.println(a + b);
	}
}

C/C++

#include <stdio.h>

int main(){
	int a, b;
	scanf("%d %d", &a, &b);
	printf("%d", a + b);
}

C++ Alternate Method (May be too slow with large inputs)

#include <iostream>
using namespace std;

int main(){
	int a, b;
	cin >> a >> b;
	cout << a + b;
}

Python 2

from sys import stdin       # Speeds up input
raw_input = stdin.readline  # (optional)

a, b = map(int, raw_input().split())
print a + b

Python 3

from sys import stdin       # Speeds up input
input = stdin.readline      # (optional)

a, b = map(int, input().split())
print(a + b)

Ruby

a, b = gets.split.map(&:to_i)
puts a + b

PHP

<?php
list($a, $b) = fscanf(STDIN, "%d %d");
echo $a + $b;
?>

Pascal

program input;

var a, b : integer;
begin
  read(a);
  read(b);
  writeln(a + b);
end.