Roger - your question contains a paradox.

A program that accepts input must wait for the user to take action. In the case of text, the program needs to know when the user's input is complete.

If the user can enter a variable number of arguements, then why have them specify the number of arguements to begin with? Instead, have the user type something to indicate they are done typing.

This could be a period, semi-colon, special keyword, or a blank line.

Ex: 5 17 -46 3 198 2 ;

-rick