Can someone help me?
Sure. Post what you tried, and explain what it does that you don't want, or what it does not do that you do want.
Getting data from the keypad is trivial. Storing the data in an array is trivial. Comparing the array to a another array is trivial. Moving a servo is trivial. Displaying data on an LCD is trivial. The key is doing all these trivial things properly, and doing them in the right order.