Anton's favourite geometric figures are regular polyhedrons. Note that there are five kinds of regular polyhedrons: 

  * Tetrahedron. Tetrahedron has 4 triangular faces. 
  * Cube. Cube has 6 square faces. 
  * Octahedron. Octahedron has 8 triangular faces. 
  * Dodecahedron. Dodecahedron has 12 pentagonal faces. 
  * Icosahedron. Icosahedron has 20 triangular faces. 



All five kinds of polyhedrons are shown on the picture below:

<image>

Anton has a collection of n polyhedrons. One day he decided to know, how many faces his polyhedrons have in total. Help Anton and find this number!

Input

The first line of the input contains a single integer n (1 ≤ n ≤ 200 000) — the number of polyhedrons in Anton's collection.

Each of the following n lines of the input contains a string si — the name of the i-th polyhedron in Anton's collection. The string can look like this:

  * "Tetrahedron" (without quotes), if the i-th polyhedron in Anton's collection is a tetrahedron. 
  * "Cube" (without quotes), if the i-th polyhedron in Anton's collection is a cube. 
  * "Octahedron" (without quotes), if the i-th polyhedron in Anton's collection is an octahedron. 
  * "Dodecahedron" (without quotes), if the i-th polyhedron in Anton's collection is a dodecahedron. 
  * "Icosahedron" (without quotes), if the i-th polyhedron in Anton's collection is an icosahedron. 

Output

Output one number — the total number of faces in all the polyhedrons in Anton's collection.

Examples

Input

4
Icosahedron
Cube
Tetrahedron
Dodecahedron


Output

42


Input

3
Dodecahedron
Octahedron
Octahedron


Output

28

Note

In the first sample Anton has one icosahedron, one cube, one tetrahedron and one dodecahedron. Icosahedron has 20 faces, cube has 6 faces, tetrahedron has 4 faces and dodecahedron has 12 faces. In total, they have 20 + 6 + 4 + 12 = 42 faces.
/******************************************************************************

                            Online Java Compiler.
                Code, Compile, Run and Debug java program online.
Write your code in this editor and press "Run" button to execute it.

*******************************************************************************/
import java.io.*;
import java.util.Scanner;
import java.util.HashMap;
import java.util.Map;
import java.util.Iterator;
import java.util.Set;
public class Main
{
	public static void main(String[] args) {
        HashMap<String, Integer> mapref = new HashMap<String, Integer>();
        initmap(mapref);
        Scanner stdin = new Scanner(new BufferedInputStream(System.in));
        long a=stdin.nextInt();
        HashMap<String, Integer> map = new HashMap<String, Integer>();
        while(stdin.hasNext()){
	     String val = stdin.next();
	     if(map.containsKey(val)){
	         int alpha =map.get(val);
	         map.remove(val);
	         map.put(val,(alpha+mapref.get(val)));
	         a--;
	      }
        else map.put(val,mapref.get(val));
             if (a == map.size()) {
        break;
    }
        }
             
        System.out.println(test(map));

	}

     public static int test(HashMap<String, Integer> l)
    { int sum=0;
      Set set = l.entrySet();
      Iterator iterator = set.iterator();
      while(iterator.hasNext()) {
         Map.Entry mentry = (Map.Entry)iterator.next();
       sum=sum+Integer.parseInt(mentry.getValue().toString());
      }
     return sum;
    }
 public static void initmap(HashMap<String, Integer> mapref)
    {mapref.put("Tetrahedron",4);
     mapref.put("Cube",6	);
     mapref.put("Octahedron",8);
     mapref.put("Dodecahedron",12);
     mapref.put("Icosahedron",20);

    }
}

