import itertools

def get_seral(name):
	serial = str()

	al = ord(name[0])
	ebp_20 = (al & 1) + 5
	ebp_1f = ((al >> 1) & 1) + 5
	ebp_1e = ((al >> 2) & 1) + 5
	ebp_1d = ((al >> 3) & 1) + 5
	ebp_1c = ((al >> 4) & 1) + 5

	al = ord(name[1])
	ebp_28 = (al & 1) + 1
	ebp_27 = ((al >> 1) & 1) + 1
	bl = ((al >> 2) & 1) + 1
	ebp_25 = ((al >> 3) & 1) + 1
	ebp_24 = ((al >> 4) & 1) + 1

	serial += str(ebp_20 + bl)
	serial += str(ebp_1d + ebp_25)
	serial += str(ebp_1f + ebp_24)
	serial += str(ebp_1e + ebp_28)
	serial += str(ebp_1c + ebp_27)

	serial += '-'

	al = ord(name[2])
	ebp_1c = ((al >> 4) & 1) + 5
	ebp_1d = ((al >> 3) & 1) + 5
	ebp_1e = ((al >> 2) & 1) + 5
	ebp_1f = ((al >> 1) & 1) + 5
	ebp_20 = (al & 1) + 5

	al = ord(name[3])
	ebp_28 = ((al & 1) + 1)
	ebp_27 = ((al >> 1) & 1) + 1
	bl = ((al >> 2) & 1) + 1
	ebp_25 = ((al >> 3) & 1) + 1
	ebp_24 = ((al >> 4) & 1) + 1

	serial += str(bl + ebp_20)
	serial += str(ebp_1d + ebp_25)
	serial += str(ebp_1f + ebp_24)
	serial += str(ebp_28 + ebp_1e)
	serial += str(ebp_1c + ebp_27)

	return serial

chars = "abcdefghijklmnopqrstuvwxyz"
min_len, max_len = 3, 3

for n in range(min_len, max_len+1):
	for xs in itertools.product(chars, repeat=n):
		bp_str = "".join(xs)
		serial = get_seral(bp_str + 'p')
		if serial == "76876-77776":
			print bp_str + 'p', serial