import itertools

def xadd(a, b):
	res = 0
	for i in range(6):
		res += (a // 10 ** i + b // 10 ** i) % 10 * (10 ** i)
	return res
	
def xmul(a, x):
	res = 0
	for i in range(6):
		res += (a // 10 ** i * x) % 10 * (10 ** i)
	return res
	
a = [int(input()) for _ in range(6)]

st = set()
for k in itertools.product(range(10), repeat=6):
	s = 0
	for i in range(6):
		s = xadd(xmul(a[i], k[i]), s)
	st.add(s)
    
print(len(st))