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 PHP (judge verdict: WA: Presentation Error)

<?php
fscanf(STDIN, "%d %d %d", $x, $y, $z);
$cnt = 0;
for($i = $x;$i <= $y;$i++) {
    if ($z % $i == 0) {
      $cnt++;
    }
}
printf($cnt);