n = input()

l = [1, 0, 0, 0, 1, 0, 1, 0, 2, 1]
a = len(n)
b = 0
for i in n:
    b += l[int(i)]

x = 1 + a*2 + b
y = 2 + b*2 + a

print(min(x, y))