You are performing bitwise operations, and using the character 0
, not the number zero, to clean things up. If you type ord '0'
, you will see the zero character is 48, or 30 in hex (or see ASCII
). The |=
operator is a compound operator, which performs a bitwise-or
between the left- and right-hand sides, and then assigns
the result to the left-hand argument.
Your bitwise-xor (^) necessarily sets bits 7 and 8 to false since you only have alphabetics. The bitwise-or (|) sets the 5th and 6th bits to true. 0011xxxx (or xxx1100 if you are a little endian) corresponds to the ASCII column that contains all the numbers.
So your output is a series of numeric characters, not a number.
#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.
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