position = 0
count = 0
first = ['Alice', 'Ariel', 'Aurora', 'Phil', 'Olaf', 'Peter', 'Phoebus', 'Ralph', 'Robin']
second = ['Bambi', 'Bolt', 'Belle', 'Mulan', 'Mowgli', 'Mickey', 'Silver', 'Simba', 'Stitch']
third = ['Dumbo', 'Genie', 'Jiminy', 'Kuzko', 'Kida', 'Kenai', 'Tarzan', 'Tiana', 'Winnie']
n = int(input())
for i in range(n):
    a = input()
    for j in first:
        if j == a:
            count += position
            position = 0
            break
    for j in second:
        if j == a:
            count += abs(position - 1)
            position = 1
            break
    for j in second:
        if j == a:
            count += abs(position - 2)
            position = 2
            break
print(count)