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Let B be a positive integer. A natural number n is called B-smooth, if in its factorisation into primes there is no prime factor greater then B. We may say equivalently that a number n is called B-smooth, if it may be represented as a product of positive integers less then or equal to .
Write a program which:
In the first line of the standard input there are three integers n, m and B, separated by single spaces, 1 ≤ n ≤ 2,000,000,000, 1 ≤ m ≤ 100,000,000, 1 ≤ B ≤ 1,000,000.
Your program should write one integer in the first line of the standard output. It should be the determined number of B-smooth numbers.
30 10 5