4.) Write a function called doctor that has no parameters. The function will ask the user to enter his/her systolic blood pressure reading. It will then ask for the diastolic reading. The function then prints either "Your blood pressure is normal." or "Your blood pressure is high." depending on the values entered. This function should use the function you wrote in the previous question. Here are some examples of calling the function with different arguments. (The code executed is in blue, the output produced is in green, and user input is in red) doctor () Enter your systolic reading: 119 Enter your diastolic reading: 79 Your blood pressure is normal doctor () Enter your systolic reading: 133 Enter your diastolic reading: 79 Your blood pressure is high