func_code_string: #include <bits/stdc++.h>   using namespace std;   bool cmp(pair<int, int> a, pair<int, int> b) { return a.second < b.second; }   int main(void) {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     long long int n, m, ta, tb, k;     cin >> n >> m >> ta >> tb >> k;     long long int a[n], b[m];     for (int i = 0; i < n; i++) cin >> a[i], a[i] += ta;     for (int i = 0; i < m; i++) cin >> b[i];     if (k >= n || k >= m) {       cout << -1 <<   n ;       return 0;     }     long long int d = 0;     for (int i = 0, index; i < n && k >= 0; i++, k--) {       index = lower_bound(b, b + m, a[i]) - b + k;       if (index >= m) {         cout << -1 <<   n ;         return 0;       }       d = max(d, b[index] + tb);     }     cout << d <<   n ;     return 0;   }   