n=input()

def calc(x):
    if x in "12357":
        return 0
    if x in "0469":
        return 1
    return 2

ANS=len(n)*2+1
for x in n:
    ANS+=calc(x)

#print(ANS)

ANS2=len(n)+2
for x in n:
    ANS2+=calc(x)*2

print(min(ANS,ANS2))