# -*- coding: utf-8 -*-
# !/usr/bin/env python
# vim: set fileencoding=utf-8 :

"""
#
# Author:   Noname
# URL:      https://github.com/pettan0818
# License:  MIT License
# Created: 金  9/28 22:33:48 2018

# Usage
#
"""
def get():
    return int(input())

def popcount(target):
    """
    >>> popcount(5)
    10
    """
    bin_num = bin(target)
    return sum([int(i) for i in list(bin_num[2:])]) * target

def solve(target):
    """
    >>> solve(10)
    23
    >>> solve(30)
    1333
    >>> solve(23072602871)
    123456789
    """
    res = 0
    for i in range(target):
        res += popcount(i)

    return res

if __name__ == '__main__':
    solve(get())