A.cpp

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using ld = long double;

#define rep(i, a, b) for (auto i = (a); i < (b); ++i)
#define per(i, a, b) for (auto i = (b); i-- > (a); )
#define all(x) begin(x), end(x)
#define rall(x) (x).rbegin(), (x).rend()
#define sz(x) int((x).size())
#define lb(x...) lower_bound(x)
#define ub(x...) upper_bound(x)

template<class T> bool ckmin(T& a, const T& b) { return a > b ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const int N = 3e5 + 10;

signed main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);

	int n; ll x, y; cin >> n >> x >> y;
	string s; cin >> s;
	x = min(x, y);
	int c = 0;
	for (int i = 0, j = 0; i < n; i = j) {
		while (j < n && s[i] == s[j]) ++j;
		c += s[i] == '0';
	}
	cout << (c ? (c - 1) * x + y : 0) << '\n';
}