a = [1, 0, 0, 0, 1, 0, 1, 0, 2, 1]

s = 0
h = 0

while True:
    x = input()
    if x == "":
        break

    for ch in x:
        if ch == '\n':
            break
        s += 1
        h += a[ord(ch) - ord('0')]
    break  

result = min(2 * (h + 1) + s, 2 * s + h + 1)
print(result)