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