please show me the code in C?

Instructions from your teacher: Note that you must have to implement the functions and use them for the purpose of the overall objective of the problem. If your program passes all the test cases, but you do not write and use the functions, you will not get full credit Sample input/output 1 (the underlined numbers are part of input): Enter four digit number: 458969 Invalid to reverse Invalid input to calculate sides Invalid input for palindrome checker Sample input/output 2 (the underlined numbers are part of input): Enter a four digit number: 2332 Reverse is: 2332 Sum of sides is: 4 Palindrome Sample input/output 3 (the underlined numbers are part of input): Enter a four digit number: 2345 Reverse is: 5432 Sum of sides is: 7 Not palindrome Privacy - Terme