import itertools

S = input()

ans = 0
for t in itertools.product((0, 1), repeat=(len(S) - 1)):
    N = S[0]
    for i, u in enumerate(t, 1):
        if u:
            N += "+"
        N += S[i]
    x = eval(N)
    for y in range(2, int(x ** .5) + 1):
        if not x % y:
            break
    else:
        if x != 1:
            ans += 1
print(ans)