#include <bits/stdc++.h>

using namespace std;

#define ll long long

const int mod = 998244353;
const int inf = 1e8;

void solve() {
  int n, c1, c2;
  cin >> n >> c1 >> c2;

  int ans = 0;
  for (int i = 1; i <= n; i++) {
    string s;
    cin >> s;
    int cost = 3 * min(c1, c2);
    if (s[0] == s[1] || s[1] == s[2] || s[2] == s[0]) {
      cost = min(cost, c2 + min(c1, c2));
    }
    ans += cost;
  }
  cout << ans;
}

signed main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  cout << fixed << setprecision(10);
  int t = 1;
  // cin >> t;
  while (t--) solve();
  return 0;
}