# Predefined fill counts for each digit based on their connected components + background
fill_counts = {
    '0': 2,
    '1': 3,
    '2': 3,
    '3': 3,
    '4': 4,
    '5': 3,
    '6': 4,
    '7': 3,
    '8': 2,
    '9': 3,
}

n = input().strip()
total = sum(fill_counts[c] for c in n)
print(total)