Write a C program to calculate the value of variable s from the following infinite series. n 2 4 6 8 X = 1 + + + + + ... + 1+2 3+ 4 5 + 6 7 + 8 (n-1)+n *Note: Your program should take an integer (even number) from the input and pass it to a function to calculate the series. The function then returns the results to the main function and print the results