inp = input()

inp = inp.split(" ")

for i in range(len(inp)):
    inp[i] = int(inp[i])

N=0

for i in inp:
    if i%3==0:
        N+=4
    if i%5==0:
        N+=4
    if i%3 and i%5:
        N += len(str(i))

print(N)