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Review the challenge brief, files, and requirements.
The flag is hidden in this obfuscated array. Each character is XOR'd with its index.
data = [70, 77, 67, 68, 127, 125, 54, 117, 87, 109, 57, 104, 126, 116, 126, 123, 33, 33, 124, 110]
Reverse the obfuscation to find the flag.
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