def shifr(N):
    S = 0
    A = str(N)
    M = [0] * (len(A) + 1)
    M[0] = 1
    M[1] = 1
    for i in range(1, len(A)):
        if A[i - 1] != '0' and int(A[i - 1] + A[i]) <= 33:
            M[i + 1] = M[i] + M[i - 1]
        else:
            M[i + 1] = M[i]
    return M[-1]
n = int(input())
print(shifr(n))