Time Limit: 1 sec
Nora is learning summation of numbers. So her Professor has given her homework “Summation of numbers from 1 to N”. Can you help Nora to complete her homework?
1 + 2 + 3 + … + N = ???
The input file contains 1 integer number N (N<=200).
Output will show the sum of series 1 to N numbers in a separate line.
Problem Setter: Shahin ShamS
Special thanks to Samia Safa Ahmed