#include <cstdio>
#include <iostream>
using namespace std;
int yue1[]={0,31,28,31,30,31,30,31,31,30,31,30,31};
bool pd(int year,int yue ,int ri)
{   //cout<<year<<" "<<yue<<" "<<ri<<endl;
    int flag=0;
    if((year%4==0&&year%100!=0)||(year%400==0))yue1[2]=29;
    else yue1[2]=28;
    if(year>=1980&&year<=2016&&yue>=1&&yue<=12)
    {
        if(ri>0&&ri<=yue1[yue])return true;
        return false;
    }
    return false;
}
int main()
{
    int t;
    cin>>t;
    while(t--)
    {
        int a,b,n;
        cin>>n>>a>>b;
        long long  int ans=0;
        while(n--)
        {
            char s[13];
            scanf("%s",s);
            int nian=(s[3]-'0')*1000+(s[4]-'0')*100+(s[5]-'0')*10+(s[6]-'0');
            int yue=(s[7]-'0')*10+(s[8]-'0');
            int ri=(s[9]-'0')*10+(s[10]-'0');
            if(s[10]==s[9]&&s[9]==s[8]&&s[8]==s[7]&&s[7]==s[6])ans+=a;
            else if(s[10]-s[9]==1&&s[9]-s[8]==1&&s[8]-s[7]==1&&s[7]-s[6]==1)ans+=a;
            else if(s[10]-s[9]==-1&&s[9]-s[8]==-1&&s[8]-s[7]==-1&&s[7]-s[6]==-1)ans+=a;
            else if(pd(nian,yue,ri))ans+=a;
            else ans+=b;

        }
        cout<<ans<<endl;
    }
    return 0;
}