#coding:utf-8

def main():
  num_list = []
  n = list(input())
  for i in n:
    num_list.append(replace(i))
  print(sum(num_list)+1)


def replace(i):
  two = {'1','2','3','5','7',}
  three = {'0','4','6','9',}
  #four = {'5',}
  if i in two:
    return 2
  elif i in three:
    return 3
  else:
    return 4 


if __name__ == '__main__':
  main()