from collections import Counter
from copy import deepcopy

N=int(input())
S=input()

C=Counter(S)

Q=[(C,0,0)]

ANS=[0]*120

while Q:
    x,keta,mod=Q.pop()

    if keta==3 or max(x.values())==0:
        count=0
        for i in range(10):
            count+=x[str(i)]

        ANS[(mod+40*count)%120]=1
        continue

    for i in range(10):
        if x[str(i)]>0:
            x[str(i)]-=1
            Q.append((deepcopy(x),keta+1,(mod+int(i)*(10**keta))%120))
            x[str(i)]+=1
            
print(sum(ANS))