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 Ruby (2.3.3) (judge verdict: Accepted)

# 整数 X を十進法で表したときの各桁の数字の和を f(X) としたとき、
# X が f(X) で割り切れる場合、X はハーシャッド数です。
# 整数 N が与えられるので、ハーシャッド数かどうか判定してください。

n = gets

sum = 0
n.length.times do |i|
  sum += n[i].to_i
end

if n.to_i % sum == 0
  puts "Yes"
else
  puts "No"
end