Problem:
Score : 200 points

Problem Statement

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.

Constraints

1?N?10^8

N is an integer.

Input

Input is given from Standard Input in the following format:

N

Output

Print Yes if N is a Harshad number; print No otherwise.

Sample Input 1

12

Sample Output 1

Yes

f(12)=1+2=3. Since 12 is divisible by 3, 12 is a Harshad number.

Sample Input 2

57

Sample Output 2

No

f(57)=5+7=12. Since 57 is not divisible by 12, 12 is not a Harshad number.

Sample Input 3

148

Sample Output 3

No

Solution in C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;
class Program{
	public static void Main(){
		string str = Console.ReadLine();
		int N = int.Parse(str);
		double sum = 0;
		for (int i = 0 ;i < str.Length ;i++ ){
			sum += Char.GetNumericValue(str[i]);
		}
		if (N % (int)sum == 0)
			Console.WriteLine("Yes");
		else
			Console.WriteLine("No");
	}
}