Write a main program which prompts the user to enter a string and then calls the functions Engm- Scanf() and LettersCount(). The function EngmScanf() reads the string from the keyboard and saves it into a char array. NOTE: The string may or may not include spaces but ends when the enter key is pressed. Assume that the string will be no longer than 1000 characters. The function LettersCount() counts the number of characters in a string (ignoring spaces, commas, and periods) and returns the count back to the main, which then prints the count to the screen. For example, if the following input is typed in by the user: Intelligence plus character, that is the goal of true education. The output is: There are 53 letters in the string. Copy and paste your program into the box below. #include #define MXLEN 1000 /* Declare the functions here */ int main(void) { int number_of_lettersCount; char str[MXLEN]; printf("Enter a string: "); EngmScanf (str); number_of_lettersCount = lettersCount(str); printf("There are %d lettersCount in the string\n", number_of_lettersCount); return O; /* Implement the functions here */