import numpy as np
from itertools import product

s = input()

def seachPrimeNum(N):
    max = int(np.sqrt(N))
    seachList = [i for i in range(2,N+1)]
    primeNum = []
    while seachList[0] <= max:
        primeNum.append(seachList[0])
        tmp = seachList[0]
        seachList = [i for i in seachList if i % tmp != 0]
    primeNum.extend(seachList)
    return primeNum

ss = set(seachPrimeNum(999999999))

lens = len(s)
bitl = list(product([False, True], repeat=lens-1))

ans = 0
for i in range(len(bitl)):
  eval_l = []
  for j in range(lens-1):
    if bitl[i][j]:
      eval_l.append(s[j])
      eval_l.append("+")
    else:
      eval_l.append(s[j])
  
  eval_l.append(s[-1])
  if eval("".join(eval_l)) in ss:
      ans += 1

print(ans)