$a = ord('A');  # 01000001
$b = ord('B');  # 01000010
$a = $a ^ $b;   # 01000001 XOR 01000010 = 00000011
$b = $a ^ $b;   # 00000011 XOR 01000010 = 01000001
$a = $a ^ $b;   # 00000011 XOR 01000001 = 01000010

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In reply to Flying Obfu Demystified by Mr. Muskrat
in thread Flying Obfu by awkmonk

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