func_code_string: #include <bits/stdc++.h>   using namespace std;   long long n, cr;   bool f = 0;   pair<long long, long long> a[25], b[25], c[25];   void gen(long long i, long long s1, long long s2) {     if (i == n) {       if (s1 != s2) cr++;     } else {       gen(i + 1, s1 + a[i].first, s2 + c[i].first);       gen(i + 1, s1, s2);     }   }   int main() {     ios::sync_with_stdio(0);     cin >> n;     for (long long i = 0; i < n; i++) {       cin >> a[i].first;       a[i].second = i;       c[i] = a[i];     }     sort(a, a + n);     sort(c, c + n);     for (long long k = 0; k < n; k++) {       for (long long i = 0; i < n; i++) {         b[i] = a[i];       }       a[0] = b[n - 1];       for (long long i = 1; i < n; i++) {         a[i] = b[i - 1];       }       cr = 0;       gen(0, 0, 0);       if (cr == ((1 << n) - 2)) {         f = 1;         for (long long i = 0; i < n; i++) {           c[i].first = c[i].second;           c[i].second = a[i].first;         }         break;       }     }     if (!f) {       cout << -1;       return 0;     }     sort(c, c + n);     for (long long i = 0; i < n; i++) {       cout << c[i].second <<    ;     }     return 0;   }   