Write down the program which gives and takes advice on program writing. Program starts by writing the piece of advice to screen and asking user to type in different advice. Program then ends. Next person runs this program receive the suggestions given by person who last ran. Advice is kept in file and contents change after each run. Permit person to type in advice of any length so that it can be any numbers of line long. User is told to end his suggestions by pressing enter twice. So, program can then test to see that it has reached end of input by checking to see when it reads two consecutive occuremces of character 'n'.