Score : $200$ points
An integer $X$ is called a Harshad number if $X$ is divisible by $f(X)$, where $f(X)$ is the sum of the digits in $X$ when written in base $10$.
Given an integer $N$, determine whether it is a Harshad number.
Input is given from Standard Input in the following format:
Yes if $N$ is a Harshad number; print
$f(12)=1+2=3$. Since $12$ is divisible by $3$, $12$ is a Harshad number.
$f(57)=5+7=12$. Since $57$ is not divisible by $12$, $12$ is not a Harshad number.