Answer: Binary Secret #30

The secret message is:

ZIP

Row by row

Row	Bulbs	Add the ‘on’ numbers	Character
1	11010	16 + 8 + 2 = 26	Z
2	01001	8 + 1 = 9	I
3	10000	16 = 16	P

Crack it with Python

Python can do the adding for you. int(code, 2) reads a string of 1s and 0s as a binary number. Then the program finds that letter in the alphabet. It takes away 1 because Python counts the letters from 0.

secret = [
    "11010",
    "01001",
    "10000",
]
letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
message = ""
for code in secret:
    number = int(code, 2)
    message = message + letters[number - 1]
print(message)

When you run it, it prints:

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