#include <bits/stdc++.h>   using namespace std;   int32_t main() {     ios::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     ;     long long l, r;     cin >> l >> r;     long long ans = 0;     for (long long i = 1; i <= r; i *= 2) {       long long cur = i;       while (cur <= r) {         if (cur >= l) ans++;         cur *= 3;       }     }     cout << ans;     return 0;   }   