import sys
input = lambda: sys.stdin.readline().rstrip()

def is_prime(n: int) -> bool:
  if n == 1:
    return 0
  for i in range(2, int(n**0.5)+1):
    if n % i == 0:
      return 0 
  return 1

###############

s = input()
n = len(s)
ans = 0
for i in range(1 << (n-1)):
  seq = ''
  for j in range(n-1):
    if i >> j & 1:
      seq += '+'
    else:
      seq += ' '
  tmp = s[0]
  for i in range(n-1):
    if seq[i] != ' ':
      tmp += seq[i]
    tmp += s[i+1]
  ans += is_prime(eval(tmp))
print(ans)