import sys
arr = []

with open(sys.argv[1]) as f:
    for l in f:
        arr.append(l.split())

score = 0
total_score = 0

for x in arr:
    #print(x)
    if x[0] == 'A':
        if x[1] == 'X':
            score = (3+0)
        elif x[1] == 'Y':
            score = (1+3)
        elif x[1] == 'Z':
            score = (2+6)

    if x[0] == 'B':
        if x[1] == 'X':
            score = (1+0)
        elif x[1] == 'Y':
            score = (2+3)
        elif x[1] == 'Z':
            score = (3+6)

    if x[0] == 'C':
        if x[1] == 'X':
            score = (2+0)
        elif x[1] == 'Y':
            score = (3+3)
        elif x[1] == 'Z':
            score = (1+6)
    #print (score)
    total_score += score
    score = 0

print(total_score)