func_code_string: #include <bits/stdc++.h>   using namespace std;   using ld = long double;   void run();   signed main() {     ios::sync_with_stdio(0);     cin.tie();     cout << fixed << setprecision(13);     run();   }   void print(vector<long long> a) {     for (long long i : a) {       cout << i <<    ;     }     cout << endl;   }   void run() {     long long n, k;     cin >> n >> k;     vector<long long> cnt = {1, 1, 2};     for (long long i = 3; i <= n; ++i) {       cnt.push_back(cnt.back() + cnt[cnt.size() - 2]);     }     --k;     vector<long long> ans;     for (long long i = 1; i <= n; ++i) {       if (cnt[n - i] <= k) {         k -= cnt[n - i];         ans.push_back(i + 1);         ans.push_back(i);         ++i;       } else {         ans.push_back(i);       }     }     for (long long i : ans) {       cout << i <<    ;     }   }   