Problem:
How Many Divisors?

Write a program which reads three integers a, b and c, and prints the number of divisors of c between a and b.

Input

Three integers a, b and c are given in a line separated by a single space.

Output

Print the number of divisors in a line.

Constraints

1 ≤ a, b, c ≤ 10000

a ≤ b

Sample Input 1

5 14 80

Sample Output 1

3

Solution in C# (judge verdict: Runtime Error)

using System;

class Program
{
    static void Main()
    {
        string[] str = Console.ReadLine().Split(' ');

        int a  = int.Parse(str[0]);
        int b =  int.Parse(str[1]);
        int c = int.Parse(str[2]);

        if (a <= b)
        {
            int i = a;
            int cnt = 0;
            while (true)
            {
                if ((c % i) == 0)
                {
                    cnt++;
                    
                }

                i++;

                if (i == b)
                {
                    break;
                }

            }

            Console.WriteLine("{0}", cnt);
        }

    }
}