#include <iostream>
using namespace std;
void main(){
	char city[100];
	char code;
	int m;
	int dis; 
	while(1){
		m=0;
		while(1){
			cin>>city;
			if(strcmp(city,"0")==0||strcmp(city,"#")==0)break;
			cin>>city;
			cin>>dis;
			cin>>code;
			switch(code){
			case 'F':
				m+=dis*2;
				break;
			case 'B':
				m+=dis+(dis+1)/2;
				break;
			case 'Y':
				dis=dis>500?dis:500;
				m+=dis;
				break;
			}
			
		}
		cout<<m<<endl;
		if(strcmp(city,"#")==0)
			break;
		else continue;
	}
}