number of multiples.py

'''
Given a positive integer - N. Print the number of multiples of 3, 5 between [1, N].

Input Format

Input contains positive integer - N.

Constraints

1 <= N <=1018

Output Format

Print the number of multiples of 3, 5 in range of 1 to N.

Sample Input 0

11
Sample Output 0

5
Explanation 0

Multiples of 3 and 5 in range of 1 to 11 are 3, 5, 6, 9, 10.
'''

def numberofmultiples(n):
    return n//3+n//5-n//15
n=int(input())
print(numberofmultiples(n))