Time Limit: 1 sec
Make a simple program that reads one variable named N, Your task is to find the sum of all integer numbers lying between 1 and N inclusive.
Input file consist of several lines. Each line contains an integer N which is not greater than 100 by its absolute value.
For each line of input, write a single integer number that is the sum of all integer numbers lying between 1 and N inclusive. Each output should be in separate line.
Problem Setter: Shahin ShamS