func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, k;     cin >> n >> k;     long long p;     cin >> p;     long long keys[2001], people[1001];     for (int i = 0; i < n; i++) cin >> people[i];     for (int i = 0; i < k; i++) cin >> keys[i];     sort(keys, keys + k);     sort(people, people + n);     long long fin = 3e9;     for (int i = 0; i + n <= k; i++) {       long long ans = -1;       for (int j = 0; j < n; j++)         ans = max(ans, abs(people[j] - keys[i + j]) + abs(keys[i + j] - p));       fin = min(fin, ans);     }     cout << fin << endl;   }   