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P1000A+B Problem
 限制 : 时间限制 : 3000 MS   空间限制 : 65536 KB  SPJ

123 456

579

###### 提示

Q: Where are the input and the output?
A: Your program shall always read input from stdin (Standard Input) and write output to stdout (Standard Output). For example, you can use 'scanf' in C or 'cin' in C++ to read from stdin, and use 'printf' in C or 'cout' in C++ to write to stdout.
You shall not output any extra data to standard output other than that required by the problem, otherwise you will get a "Wrong Answer".
User programs are not allowed to open and read from/write to files. You will get a "Runtime Error" or a "Wrong Answer"if you try to do so.

Here is a sample solution to problem A+B using C++/G++:

#include <iostream>
using namespace std;
int main()
{
int a,b;
cin >> a >> b;
cout << a+b << endl;
return 0;
}

It's important that the return type of main() must be int and its value must be 0, otherwise you may get compilation error or runtime error.

Here is a sample solution to problem A+B using C/GCC:

#include <stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a, &b);
printf("%d\n",a+b);
return 0;
}

Here is a sample solution to problem A+B using Pascal:

program sum;
var
a,b: longint;
begin
writeln(a+b);
end.


Here is a sample solution to problem A+B using Java:

import java.io.*;
import java.util.*;
public class Main
{
public static void main(String args[]) throws Exception
{
Scanner cin=new Scanner(System.in);
int a=cin.nextInt(),b=cin.nextInt();
System.out.println(a+b);
}
}