import itertools

A=[list(map(int,list(input()))) for i in range(6)]
seen=[0]*(10**6)
for tpl in itertools.product(range(10),repeat=6):
    seen[sum(sum(tpl[i]*A[i][j] for j in range(6))%10*10**i for i in range(6))]=1
ans=sum(seen)
print(ans)