#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <string>
#include <iostream>
#include <algorithm>
using namespace std;
#include <queue>
#include <stack>
#include <vector>
#include <bitset>
#include <deque>
#include <set>
#pragma comment(linker, "/STACK:1024000000,1024000000")
#include <map>
typedef long long LL;
typedef unsigned long long ULL;
const int INF = 1<<29;
const LL mod = 1e9+7;
int day[123]={0,31,28,31,30,31,30,31,31,30,31,30,31};
int main()
{
    int t,n,a,b;
    scanf("%d",&t);
    while(t--){
        scanf("%d%d%d",&n,&a,&b);
        LL ans=0;
        char s[123];
        for(int i=0;i<n;i++)
        {
            scanf("%s",s);
            int len=strlen(s),flag=0;
            for(int j=len-5;j<len;j++)
            {
                if(s[len-5]!=s[j])
                    flag=1;
            }
            if(flag==0){
                ans+=a;
                continue;
            }
            flag=0;
            for(int j=len-4;j<len;j++){
                if(s[j]-s[j-1]!=1) flag=1;
            }
            if(flag==0){
                ans+=a;
                continue;
            }
            flag=0;
            for(int j=len-4;j<len;j++){
                if(s[j]-s[j-1]!=-1) flag=1;
            }
            if(flag==0){
                ans+=a;
                continue;
            }
            flag=0;
            int year=0,m=0,d=0;
            for(int j=len-8;j<len-4;j++){
                year=year*10+s[j]-'0';
            }
            for(int j=len-4;j<len-2;j++){
                m=m*10+s[j]-'0';
            }
            for(int j=len-2;j<len;j++){
                d=d*10+s[j]-'0';
            }
            if(year<1980||year>2016)
            {
                ans+=b;
                continue;
            }
            if((year%4==0&&year%100!=0)||(year%400==0))
            {
                if(m==2&&d>=1&&d<=29)
                {
                    ans+=a;
                    continue;
                }
                else if(m<=12&&m>=1&&m!=2&&d>=1&&d<=day[m])
                {
                    ans+=a;
                    continue;
                }
            }
            else
            {
                if(m<=12&&m>=1&&d>=1&&d<=day[m])
                {
                    ans+=a;
                    continue;
                }
            }
            ans+=b;
        }
        cout<<ans<<endl;
    }
    return 0;
}
/*
*/