#include <bits/stdc++.h>
using namespace std;

#define rep(i, a, b) for (int i = a; i < b; i++)
using ll = long long;

int main(){
	ll n, m, t;
	cin >> n >> m >> t;
	vector<int> a(m);
	rep(i, 0, m) cin >> a[i];
	vector<ll> b(n + 1);
    ll ma = 0;
	rep(i, 0, m) {
		b[a[i]]++;
		ma = max(ma, b[a[i]]);
	}
    ll ans = ma;
    if(n > 1) {
        int r = m - ma;
        rep(i, 0, ma + 1) ans = min(ans, max(ma - i, i * t + r));
    }
	cout << ans << endl;
}