package timus;
import java.util.Scanner;
/**
* Created by sherxon on 12/5/16.
*/
public class WeddingDinner2100 {
public static void main(String[] args) {
Scanner in =new Scanner(System.in);
int n=Integer.parseInt(in.nextLine());
int count=0;
count+=n;
count+=2;
for (int i = 0; i < n; i++) {
String s=in.nextLine();
int inde=s.indexOf("+one");
if(inde>0){
count++;
}
}
if(count==13)count+=1;
System.out.println(count*100);
}
}