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Continue to ChatQ3 If a four digit number is input through the keyboard, write a program to obtain the sum of the first and last digit of this number. https://www.easterscience.com/q3-if-a-four-digit-number-is-input-through-the-keyboard-write-a-program-to-obtain-the-sum-of-the-first-and-last-digit-of-this-number/