from itertools import permutations
N = int(input())
S = list(input())
C = {str(i):0 for i in range(1,10)}
for i in range(N):
    C[S[i]] += 1
A = []
cnt = 0
i = 1
while True:
    if C[str(i)]>0:
        A.append(str(i))
        C[str(i)] -= 1
        cnt += 1
    i += 1
    i = i%10
    if i==0:
        i = 1
    if cnt==min(N,9):break
B = set()
for z in permutations(A,min(N,9)):
    z = "".join(z)
    B.add(int(z)%120)
print(len(B))