C PROGRAMMING ONLY PLEASE. Also please refer to the example inputs and outputs below.

Write a program that prompts the user to enter a string and prints the goodness of the string. The goodness of a string in general, is calculated in the following way: If the string contains any letters except for 0 or 1, then its goodness is 0. Otherwise, its goodness is the number of 1's in the string.

Sample Input: Enter a string with no spaces: 0000011111 Output: Goodness OI the input strina 1S 5 Sample Input: Output: Goodness of the input string is Sample Input: Enter a string with no spaces: nn1l Output: Goodness OI the input strina 1S 0 Sample Input: Enter a string with no spaces: 00xyz111 Output: Goodness of the input string is