#include "iostream"
#include "string"
using namespace std;

int main()
{
	//freopen("s.txt","r",stdin);
	int t;
	int p,w;
	int i,temp;
	unsigned long sum;
	string s;

	cin >> t;
	while (t--)
	{
		cin >> p >> w;
		cin.get();
		getline(cin, s);

		sum = 0;
		for (i=0; i<s.length(); i++)
		{
			if (s[i] >= 'A' && s[i] <= 'C')
			{
				temp = s[i]-'A'+1;
				sum += (temp*p);
				
				if (i == s.length()-1)
					break;

				if (s[i+1] >= 'A' && s[i+1] <= 'C')
					sum += w;
			}
			else if (s[i] >= 'D' && s[i] <= 'F')
			{
				temp = s[i]-'D'+1;
				sum += (temp*p);

				if (i == s.length()-1)
					break;
				if (s[i+1] >= 'D' && s[i+1] <= 'F')
					sum += w;
			}
			else if (s[i] >= 'G' && s[i] <= 'I')
			{
				temp = s[i]-'G'+1;
				sum += (temp*p);
				if (i == s.length()-1)
					break;
				if (s[i+1] >= 'G' && s[i+1] <= 'I')
					sum += w;
			}
			else if (s[i] >= 'J' && s[i] <= 'L')
			{
				temp = s[i]-'J'+1;
				sum += (temp*p);
				if (i == s.length()-1)
					break;
				if (s[i+1] >= 'J' && s[i+1] <= 'L')
					sum += w;
			}
			else if (s[i] >= 'M' && s[i] <= 'O')
			{
				temp = s[i]-'M'+1;
				sum += (temp*p);
				if (i == s.length()-1)
					break;
				if (s[i+1] >= 'M' && s[i+1] <= 'O')
					sum += w;
			}
			else if (s[i] >= 'P' && s[i] <= 'S')
			{
				temp = s[i]-'P'+1;
				sum += (temp*p);
				if (i == s.length()-1)
					break;
				if (s[i+1] >= 'P' && s[i+1] <= 'S')
					sum += w;
			}
			else if (s[i] >= 'T' && s[i] <= 'V')
			{
				temp = s[i]-'T'+1;
				sum += (temp*p);
				if (i == s.length()-1)
					break;
				if (s[i+1] >= 'T' && s[i+1] <= 'V')
					sum += w;
			}
			else if (s[i] >= 'W' && s[i] <= 'Z')
			{
				temp = s[i]-'W'+1;
				sum += (temp*p);
				if (i == s.length()-1)
					break;
				if (s[i+1] >= 'W' && s[i+1] <= 'Z')
					sum += w;
			}
			else
			{
				sum += p;
				if (i == s.length()-1)
					break;

				if (s[i+1] == ' ')
					sum += w;
			}
		}
		cout << sum << endl;
	}
	return 0;
}

• 连续的空格不用+w吧... (2293) LOY 2006-07-23 22:12:23