numbers = {"0": 3, "1": 2, "2": 2, "3": 2, "4": 3, "5": 2, "6": 3,
           "7": 2, "8": 4, "9": 3}


def main():
    N = input()
    ctr = 0
    for letter in N:
        ctr += numbers[letter]
    print(ctr + 1)


if __name__ == "__main__":
    main()