Write a program that reads several numbers
and prints the sum of the digits of each one.
Input
Input consists of a sequence of natural numbers.
Output
For every number, print the sum of its digits
following the format of the example.
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Public test cases
Input
29
7
0
1020
Output
The sum of the digits of 29 is 11.
The sum of the digits of 7 is 7.
The sum of the digits of 0 is 0.
The sum of the digits of 1020 is 3.
Input
29
7
0
1020
Output
The sum of the digits of 29 is 11.
The sum of the digits of 7 is 7.
The sum of the digits of 0 is 0.
The sum of the digits of 1020 is 3.