1049 - Sum 1049 - Suma 1049 - Sum

Statistics Sub: 52586 | AC: 8349 | AC%: 15,88 | Score: 0,03
Created by 2000/2001 ACM Northeastern European Regional Programming Contest (test tour)
Added by ejaltuna (2011-10-13)
Limits
Total Time: 4000 MS | Test Time: 2000 MS |Memory: 62 MB | Output: 64 MB | Size: 30 KB
Enabled languages
Available in

Description

Your task is to find the sum of all integer numbers lying between 1 and N inclusive.
La tarea es encontrar la suma de todos los números enteros comprendidos entre 1 y N (incluyéndolos).
Your task is to find the sum of all integer numbers lying between 1 and N inclusive.

Input specification

The input consists of a single integer N that is not greater than 10^4 by it's absolute value.
La entrada consiste en una sola línea con un entero N que no es mayor que 10^4 por su valor absoluto.
The input consists of a single integer N that is not greater than 10^4 by it's absolute value.

Output specification

Write to the output a single integer number that is the sum of all integer numbers lying between 1 and N inclusive.
Escribir en la salida un número entero que es la suma de todos los números enteros comprendidos entre 1 y N (incluyéndolos).
The input consists of a single integer N that is not greater than 10^4 by it's absolute value.

Sample input

3

Sample output

6

Hint(s)

http://coj.uci.cu/24h/
http://coj.uci.cu/24h/

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