a = input()

s = 0

ll = ['c','f','i','l','o','r','u','x','!']
hh = ['b','e','h','k','n','q','t','w','z',',']
pp = ['a','d','g','j','m','p','s','v','y','.',' ']

for i in range(len(a)):
    if a[i] in ll:
        s+=3
    elif a[i] in hh:
        s+=2
    elif a[i] in pp:
        s+=1
print(s)