s = input()
total1 = 1
total2 = 2
for c in s:
    if c in ("0", "4", "6", "9"):
        total1 += 3
        total2 += 3
    elif c == "8":
        total1 += 4
        total2 += 5
    else:
        total1 += 2
        total2 += 1
print(min(total1, total2))