#include <bits/stdc++.h>
#define F first
#define S second
#define pb push_back
#define llong long long
#define dlong long double
#define endl '\n'

#pragma GCC target("sse,sse2,sse3,sse3,sse4,popcnt,abm,mmx")

using namespace std;

const int N=(1e5) + 5;
const int MOD=(1e9) + 7;


llong binpow (llong a, int n) {
    llong res = 1;
    while (n) {
        if (n & 1) res *= a;
        res%=MOD;
        a *= a;
        a%=MOD;
        n >>= 1;
    }
    return res%MOD;
}

int main() {
    ios_base::sync_with_stdio();
    cin.tie(0);
    cout.tie(0);
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#else
    //freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);
#endif // LOCAL
    int x,y;
    cin >> x >> y;
    if (y%x!=0){
        cout << 0 << endl;
        return 0;
    }
    int k=y/x;
    if (k==1){
        cout << 1 << endl;
        return 0;
    }
    cout << (binpow(2,k-1) - 1 + MOD )% MOD << endl;
    return 0;
}