XOR three numbers
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Instructions: Enter an integer less than 256 in the upper left textfield labeled "number 1," an integer less than 256 in the upper middle textfield labeled "number 2," and an integer less than 256 in the upper middle textfield labled "number 3." Then hit return and see the result of the exclusive or of all three numbers. Try 69 31 31 for the three numbers - what is the result? Try 23 77 77. What property does XOR have that might be useful in cryptography?