secventa_xor

#include <fstream>
#include <cmath>
#define MOD 1000000007
#define ULL unsigned long long int
using namespace std;
ULL n=1,k;

ULL PowLog(ULL a, ULL b)
{
    ULL res=1;
    while(b)
    {
        if(b%2)
            res=(1ULL*res*a)%MOD;
        a=(1LL*a*a)%MOD;
        b/=2;
    }
    return res;
}

int main()
{
    ifstream f("secventa.in");
    ofstream g("secventa.out");
    f>>k;
    while(k%2==0)
        n*=2,k/=2;
    ULL sol=PowLog(2,n);
    sol=(sol+MOD-1)%MOD;
    g<<sol;
    return 0;
}