___  ___     
          \         /   \/   \      Paper goes left to right
     ------>       /          \     The rolls fold the paper folds
          /       (    / /|\   )    on alternate sides
                   \   \__/   /   
 ...________________\___  ___/________/\___________  ___________/\_____...
                    /   \/   \                     \/             
                   /    __    \   
                  (    /  \    )  
                   \   \ \|/  /   
                    \___  ___/    
                        \/