#include <bits/stdc++.h>
// clang-format off
using namespace std; using ll=long long; using ull=unsigned long long; using pll=pair<ll,ll>; const ll INF=4e18;
void print0(){}; template<typename H,typename... T> void print0(H h,T... t){cout<<h;print0(t...);}
void print(){print0("\n");}; template<typename H,typename... T>void print(H h,T... t){print0(h);if(sizeof...(T)>0)print0(" ");print(t...);}
void perr0(){}; template<typename H,typename... T> void perr0(H h,T... t){cerr<<h;perr0(t...);}
void perr(){perr0("\n");}; template<typename H,typename... T>void perr(H h,T... t){perr0(h);if(sizeof...(T)>0)perr0(" ");perr(t...);}
void ioinit() { cout<<fixed<<setprecision(15); cerr<<fixed<<setprecision(6); ios_base::sync_with_stdio(0); cin.tie(0); }
#define debug1(a) { cerr<<#a<<":"<<a<<endl; }
#define debug2(a,b) { cerr<<#a<<":"<<a<<" "<<#b<<":"<<b<<endl; }
#define debug3(a,b,c) { cerr<<#a<<":"<<a<<" "<<#b<<":"<<b<<" "<<#c<<":"<<c<<endl; }
#define debug4(a,b,c,d) { cerr<<#a<<":"<<a<<" "<<#b<<":"<<b<<" "<<#c<<":"<<c<<" "<<#d<<":"<<d<<endl; }
// clang-format on
ll N, K, X;
ll A[200005];
ll dp(ll i, ll pre) {
    static bool done[200005][2];
    static ll memo[200005][2];
    if (done[i][pre]) return memo[i][pre];
    done[i][pre] = true;
    if (i == N) {
        return memo[i][pre] = 0;
    }
    ll ans = INF;
    if (pre) {
        ans = min(ans, dp(i + 1, 1) + K);
        ans = min(ans, dp(i + 1, 0) + A[i]);
    } else {
        ans = min(ans, dp(i + 1, 1) + X + K);
        ans = min(ans, dp(i + 1, 0) + A[i]);
    }
    return memo[i][pre] = ans;
}
int main() {
    ioinit();
    cin >> N >> K >> X;
    for (ll i = 0; i < N; i++) cin >> A[i];
    print(dp(0, 0));
    return 0;
}