#5622: 다이얼
s = input()
sum = 0
for i in range(len(s)):
if s[i]=='A' or s[i]=='B' or s[i]=='C':
sum = sum + 3
elif s[i]=='D' or s[i]=='E' or s[i]=='F':
sum = sum + 4
elif s[i]=='G' or s[i]=='H' or s[i]=='I':
sum = sum + 5
elif s[i]=='J' or s[i]=='K' or s[i]=='L':
sum = sum + 6
elif s[i]=='M' or s[i]=='N' or s[i]=='O':
sum = sum + 7
elif s[i]=='P' or s[i]=='Q' or s[i]=='R' or s[i]=='S':
sum = sum + 8
elif s[i]=='T' or s[i]=='U' or s[i]=='V':
sum = sum + 9
elif s[i]=='W' or s[i]=='X' or s[i]=='Y' or s[i]=='Z':
sum = sum + 10
elif s[i] == " ":
sum = sum + 2
else:
sum = sum + 11
print(sum)