func_code_string: #include <bits/stdc++.h>   using namespace std;   long long l, r, ans = 0;   int main() {     cin >> l >> r;     for (long long i = 1; i <= r; i *= 2) {       for (long long j = 1; j <= r; j *= 3) {         if (i * j >= l && i * j <= r) ans++;       }     }     cout << ans << endl;     return 0;   }   