Write a program that reads the temperature and unit from the user and prints a message indicating if it’s hot, cool or cold. The user may enter the temperature either in Fahrenheit or in Celsius. Be

Write a program that reads the temperature and unit from the user and prints a message indicating if it’s  

hot, cool or cold. The user may enter the temperature either in Fahrenheit or in Celsius. Below are the  

intervals. Your program should use nested if-else statements. If the input is invalid, print an error message  

and terminate the program.