For the following question you may assume you can use functions from stdio.h and ctype.h 1. Declare 2 character variables (let1 and let2) and 3 integer variables (example num1, num2, num3) 2. Write the 2 statements needed to prompt for input and "read" from the keyboard and store a value in one of the character variables (let1) 3. Use the toupper function from to assign an uppercase version of the input character to your second character variable (let2) 4. As indicated in program 2 assign the numerical value of the input character (let 1 ) to one of the integers declared above (num1) 5. Assign the numerical value of the uppercase character(let2) to a different integer declared above (num2) 6. Write the statement to assign the sum of the num 1 and num2 to num 3 7. Print all five variable values onto the screen