S = input()
one_time = ["1", "2", "3", "5", "7"]
two_time = ["0", "4", "6", "9"]
three_time = ["8"]
ans = 1

for i in range(len(S)):
    if S[i] in one_time:
        ans += 2
    elif S[i] in two_time:
        ans += 3
    else:
        ans += 4
print(ans)