505 - Add The Digits

Add The Digits

Time Limit: 1 sec

**The Problem**

**SmahS **is a good programmer. He loves to teach programming. One day while he was taking class he asked his students "If I give you a number can you add all the digits of that number?"

Example:

123 is a number.

The summation of that number 1 + 2 + 3 = 6

Can you help the student to solve this?

**The Input**

The input file contains a series of line. Each line contains a single integer number **N (0 <= N <=1001****)**, Input is terminated by EOF.

**The Output**

For each line of input print the summation of all the digits of that number in a separate line

**Sample Input**

123

1001

**Sample Output**

6

2

Problem Setter: Samia Safa Ahmed