func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, m, ans, temp;   set<int> st;   int main() {     ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);     ;     cin >> n >> m;     ans = n + m;     temp = 2;     while (n) {       n -= (temp % 6 != 0);       st.insert(temp);       temp += 2;     }     temp = 3;     while (m) {       m -= (temp % 6 != 0);       st.insert(temp);       temp += 3;     }     for (auto i : st) {       ans--;       if (!ans) return cout << i <<   n , 0;     }     return 0;   }   