n = input()

d = {'0':1, '1':0, '2':0, '3': 0, '4':1, '5':0, '6':1, '7':0, '8':2, '9':1}
x = 1
y = 2

x += len(n) * 2
for i in n:
    x += d[i]

y += len(n)
for i in n:
    y += d[i] * 2

print(min(x, y))