#include <bits/stdc++.h>
using namespace std;
const long long mod = 1000000007;
const int N = 5e5;
int main() {
  long long n, a, b, c, t;
  cin >> n >> a >> b >> c >> t;
  long long arr[n + 1];
  for (long long i = 1; i <= n; i++) {
    cin >> arr[i];
  }
  long long s = n * a;
  if (b >= c) {
    cout << s << endl;
  } else {
    long long q = 1;
    long long s2 = 0;
    long long q2 = 1;
    long long s3 = 0;
    for (long long i = 1; i <= n; i++) {
      if (arr[i] != t) {
        s2 += (t - arr[i]) * c;
        q++;
      }
    }
    for (long long i = 1; i <= n; i++) {
      arr[i] = a - (t - arr[i]) * b;
    }
    for (long long i = 1; i <= n; i++) {
      s3 += arr[i];
    }
    cout << s2 + s3;
  }
}
