d = {"Tetrahedron": 4, "Cube": 6, "Octahedron": 8, "Dodecahedron": 12, "Icosahedron": 20}
n = int(input())
ans = 0
i = 0
while i < n:
s = input()
ans += d.get(s,0)
i += 1
print(ans)
1140D - Minimum Triangulation | 75C - Modified GCD |
1722A - Spell Check | 1722B - Colourblindness |
1722D - Line | 1722C - Word Game |
1722G - Even-Odd XOR | 552E - Vanya and Brackets |
933A - A Twisty Movement | 1722F - L-shapes |
1196B - Odd Sum Segments | 1325D - Ehab the Xorcist |
552B - Vanya and Books | 1722E - Counting Rectangles |
168A - Wizards and Demonstration | 168B - Wizards and Minimal Spell |
7A - Kalevitch and Chess | 912B - New Year's Eve |
1537C - Challenging Cliffs | 879B - Table Tennis |
1674E - Breaking the Wall | 1282A - Temporarily unavailable |
1366C - Palindromic Paths | 336A - Vasily the Bear and Triangle |
926A - 2-3-numbers | 276D - Little Girl and Maximum XOR |
1253C - Sweets Eating | 1047A - Little C Loves 3 I |
758D - Ability To Convert | 733A - Grasshopper And the String |