#include <bits/stdc++.h>   using namespace std;   int n, A, B, C, T;   int temp[1005];   int main() {     cin >> n >> A >> B >> C >> T;     long long ans = 0;     for (int i = 1; i <= n; i++) cin >> temp[i];     ans = n * A;     if (C > B) {       for (int i = 1; i <= n; i++) ans += (C - B) * (T - temp[i]);     }     cout << ans << endl;     return 0;   }   