import sys
input = sys.stdin.readline

A=list(map(int,input().split()))

ANS=0

for a in A:
    if a%3==0 and a%5==0:
        ANS+=8
    elif a%3==0 or a%5==0:
        ANS+=4
    else:
        ANS+=len(str(a))

print(ANS)