Question: Write a C# GUI application that masks all but the last 4 digits of a credit card number with an X 1. Leave the last

Write a C# GUI application that masks all but the last 4 digits of a credit card number with an X 1. Leave the last three digits as is. 2. Leave any spaces as is. 3. Replace any number or letter with an X 4. The program should work for credit card numbers that are any length (including numbers that are less than three digits long). 5. The program must support credit card numbers with spaces, dashes, or no separator.

Write a C# GUI application that masks all but the last 4

Credit Card Masker 4534 1313 1233 1213 Mask

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