import itertools


def solve(x):
    if len(x) <= 0:
        return 0
    else:
        if x[0] % 3 == 0 and x[0] % 5 == 0:
            return 8 + solve(x[1:])
        elif x[0] % 3 == 0 or x[0] % 5 == 0:
            return 4 + solve(x[1:])
        else:
            return len(str(x[0])) + solve(x[1:])

x = list(map(int, input().split()))
print(solve(x))