Use a loop to allow a user to enter a series of numbers and then print out the series of numbers when the user is done. The user stops the lseries program by entering -1 (or any negative number).

The program should allow me to enter any number of positve integers until I enter -1 and then the program prints the series of numbers I entered.

You are not supposed to use an array. I honestly do not know how to do this. I understand how to continue asking the user for inputs and I understand how to terminate the program, but how to print out all the numbers is befuddling me.