*a,=open(0).read().split()
d=[set()for _ in range(6)]
for i in range(6):
  for j in a:
    k=int(j[i])
    d[i]|={k}
    while k and k<=9:
      d[i]|={k%10}
      k+=int(j[i])
ans=1
for i in d:
  ans*=len(i)
print(ans)