func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, k, a, b, c, d;     cin >> n >> k >> a >> b >> c >> d;     if (n == 4 || k < n + 1)       cout << -1 << endl;     else {       int cur = 1;       vector<int> ret;       ret.push_back(a);       ret.push_back(c);       while (cur == a || cur == b || cur == c || cur == d) cur++;       ret.push_back(cur);       cur++;       ret.push_back(d);       for (int x = 4; x < n - 1; x++) {         while (cur == a || cur == b || cur == c || cur == d) cur++;         ret.push_back(cur);         cur++;       }       ret.push_back(b);       for (int i = 0; i < n; i++) cout << ret[i] <<    ;       cout << endl;       cout << ret[1] <<     << ret[0] <<     << ret[2] <<     << ret[n - 1]            <<    ;       for (int i = n - 2; i > 2; i--) cout << ret[i] <<    ;       cout << endl;     }   }   