n = input()
group1, group2 = 0, 0

for n_i in n:
    if n_i in ['0', '4', '6', '9']:
        group1 += 1
        
    if n_i in ['8']:
        group2 += 1
    
ans = len(n) + 1 + group1 + group2 * 2 + len(n)
print(ans)