#include<bits/stdc++.h> #define ll long long using namespace std; const int maxn=1e5+10; const ll inf=1e10; const ll mod=998244353; ll n,m; int _gcd(int a,int b){ if(!b) return a; return _gcd(b,a%b); } int main(){ // freopen("gcdxor.in","r",stdin); // freopen("gcdxor.out","w",stdout); scanf("%lld",&n); ll cnt=0; for(int i=1;i<=n;i++){ for(int j=2;j*i<=n;j++){ // cout<<i<<" "<<j<<" "<<cnt<<" "<<j*i<<" "<<((j*i)&i)<<endl; if(((j*i)&i)==i) cnt++; } } printf("%lld",cnt); fclose(stdin); fclose(stdout); return 0; }