def main():
    N = list(input())

    count = 0
    for n in N:
        if n in ("1","2","3","5","7"):
            count += 0
        elif n in ("0","4","6","9"):
            count += 1
        elif n == "8":
            count += 2

    count += 1 + 2*len(N)

    count2 = 1
    for n in N:
        if n in ("1","2","3","5","7"):
            count2 += 0
        elif n in ("0","4","6","9"):
            count2 += 1
        elif n == "8":
            count2 += 2
    count2 = count2*2 + len(N)

    print(min(count, count2))


if __name__ == "__main__":
    main()