#include<bits/stdc++.h>
using namespace std;
int main()
{
int t,n,i,a[26],has[26];
string s;
cin>>t;
while(t--)
{
long long sum=0;
for(i=0;i<26;i++)
cin>>a[i];
/*for(i=0;i<26;i++)
has[i]=0; */
has[26]={0};
cin>>s;
for(i=0;i<s.length();i++)
has[s[i]-'a']++;
for(i=0;i<26;i++)
{
if(has[i]==0)
sum+=a[i];
}
cout<<sum<<endl;
}
return 0;
}
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