
num_dict = {
'A':2,'B':2,'C':2,
'D':3,'E':3,'F':3,
'G':4,'H':4,'I':4,
'J':5,'K':5,'L':5,
'M':6,'N':6,'O':6,
'P':7,'Q':7,'R':7,'S':7,
'T':8,'U':8,'V':8,
'W':9,'X':9,'Y':9,'Z':9,
}
S = input()
len_S = len(S)
# 1누르려면 2초걸림 2누르려면 3초... 다 더하고 S만큼 더해야된다는 뜻.
nums= 0
for i in S:
nums += num_dict[i]
answer = nums+len_S
print(answer)