//
//
//  Codeforces: ganariya
//  AtCoder: ganariya2525
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//include
//------------------------------------------
#include <vector>
#include <list>
#include <map>
#include <unordered_map>
#include <climits>
#include <set>
#include <unordered_set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>
#include <queue>
#include <random>
#include <complex>
#include <regex>
#include <locale>
#include <random>
#include <type_traits>

using namespace std;

#define SHOW_VECTOR(v) {std::cerr << #v << "\t:";for(const auto& xxx : v){std::cerr << xxx << " ";}std::cerr << "\n";}
#define SHOW_MAP(v){std::cerr << #v << endl; for(const auto& xxx: v){std::cerr << xxx.first << " " << xxx.second << "\n";}}

using LL = long long;

//~~~~~~~~~~~~~~~~~~~~~_(＾～＾ ｣ ∠)_~~~~~~~~~~~~~~~~~~~~~


int main() {

    LL N, A, B;
    cin >> N >> A >> B;

    vector<LL> X(N);
    for (int i = 0; i < N; i++) cin >> X[i];

    vector<LL> diff(N - 1);
    for (int i = 0; i < N - 1; i++) diff[i] = X[i + 1] - X[i];
    sort(diff.rbegin(), diff.rend());

    LL dist = X.back() - X.front();
    LL ans = dist * A;

    for (LL i = 1; i < N; i++) {
        dist -= diff[i - 1];
        LL d = dist * A + i * B;
        ans = min(ans, d);
    }

    cout << ans << endl;

    return 0;
}
















































Measured memory_bytes: 1792