HELP SUPRIYA

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Supriya has been provided with an old cell phone with just a number pad, neither screen nor an alpha numeric keypad. She needs to send a message to her friend; but she can't see what she's typing because of the inconvenience of the old cell phone. She needs to type numerals instead of letters the way we used to do in our old cell phones. For example, if she wants to type 'p', she needs to type '7'

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solution.cppC++17

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