#include<iostream>
#include<cstdlib>
#include<cstdio>
#include<algorithm>
using namespace std;
const int N=1e7+5;
unsigned int sum;
int a[N];
int main()
{
int n=1e7;
for(int i=1;i<=n;++i)a[i]=i&(i-1);
for(int i=1;i<=n;++i)sum+=a[i];
cout<<sum<<endl;
}