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.
# -*- coding: utf-8 -*-
import sys
import StringIO

tokens = list()
pos = 0

pol = {"Tetrahedron":4, "Cube":6, "Octahedron":8, "Dodecahedron":12, "Icosahedron":20}
def solve():
	n = read_int()
	ans = 0
	for i in xrange(n):
		fig = read()
		ans += pol[fig]
	return ans

def read_int():
	return int(read())

def read_int_array(size):
	return tuple(read_int() for i in xrange(size))

def read_float():
	return float(read())

def read():
	global tokens
	global pos
	while len(tokens) == 0 or pos == len(tokens):
		tokens = raw_input().split()
		pos = 0
	token = tokens[pos]
	pos += 1
	return token

def run_tests(tests):
	from colorama import Fore, Back
	print Back.BLUE + 'Running tests...\n'
	test_id = 1
	for test in tests:
		sys.stdin = StringIO.StringIO(test[0])
		result = solve()
		try:
			assert result == test[1]
			print Back.GREEN + 'Test %d PASSED' % test_id
			test_id += 1
		except Exception as e:
			print Back.RED + 'Test %d FAILED' % test_id, 'for input %s, expected %s, found %s' % (test[0], test[1], result)

def main():
	if len(sys.argv) > 1 and (sys.argv[1] == '--test' or sys.argv[1] == '-T'):
		from colorama import init
		init()
		tests = [
		('''4
		1 -1 4 5''', -1),
		('''
		2
		9 8''', 8)
		]
		run_tests(tests)
	else:
		res = solve()
		print res

if __name__ == '__main__':
	main()