#include<bits/stdc++.h>
using namespace std;
#define int long long
#define For(i,aa,a) for(int i=aa;i<=a;i++)
int n,m;
const int N=2e6+7;
int a1,a2;
void solve(){
    cin>>n>>a1>>a2;
    if(a2>2*a1){
        cout<<n*3*a1<<endl;
        return;
    }
    if(a2<a1){
        int sum=0;
        for(int i=1;i<=n;i++){
            string s;
            int fl=0;
            cin>>s;
            int bro[27]={0};
            for(int j=0;j<3;j++){
                bro[s[j]-'A']++;
                if(bro[s[j]-'A']==2){
                    sum+=a2;
                    fl=1;
                }
            }
            if(fl==1)sum+=a2;
            else sum+=3*a2;
        }
        cout<<sum<<endl;
        return;
    }
    if(a2>=a1&&a2<=2*a2){
        int sum=0;
        for(int i=1;i<=n;i++){
            string s;
            int fl=0;
            cin>>s;
            int bro[27]={0};
            for(int j=0;j<3;j++){
                bro[s[j]-'A']++;
                if(bro[s[j]-'A']==2){
                    sum+=a2;
                    fl=1;
                }
            }
            if(fl==1)sum+=a2;
            else sum+=3*a1;
        }
        cout<<sum<<endl;
        return;
    }
    
}
signed main(){
    int t=1;
    //cin>>t;
    while(t--){
        solve();
    }
}