I need help with the 3.19.5 super karel cleanup challenge on codehs. every code i've tried so far is correct but doesn't do all of the worlds.

Print "usernum1 is negative." if usernum1 is less than 0. end with newline. convert usernum2 to 0 if usernum2 is greater than 10. otherwise, print "usernum2 is less than or equal to 10.". end with newline

Under which key category do the page up and page down keys fall? page up and page down keys fall under the keys category.

Based on your knowledge of a good network, describe what you think is a perfect network would be. what kind of information and resources could users share on this network. what would the network administrator do? what kind of communication would be used?