func_code_string: #include <bits/stdc++.h>   using namespace std;   long long int solve(long long int a, long long int b) {     long long int x = sqrt(8 * (a + b) + 1) - 1;     return x / 2;   }   int main() {     long long int a, b;     cin >> a >> b;     long long int x = solve(a, b);     vector<long long int> w1, w2;     for (long long int i = x; i > 0; i--) {       if (a >= i) {         a -= i;         w1.push_back(i);       } else {         b -= i;         w2.push_back(i);       }     }     cout << w1.size() << endl;     for (int i = 0; i < w1.size(); i++) cout << w1[i] <<    ;     cout << endl;     cout << w2.size() << endl;     for (int i = 0; i < w2.size(); i++) cout << w2[i] <<    ;     return 0;   }   