Since you are a beginner, I would suggest that you click this link, scroll down just a bit and locate the tutorial links for beginners. Once you have reviewed this information and tried to solve the problem at hand, if you still have questions, come back and show us what you have tried by posting your code and someone will be glad to help you out.
Edit: I know you are a beginner but please avoid using the code tag for general comments on the forum. Also, LabVIEW code is called a VI, not a schema. Schemas are for XML.