C222123232321333131133133313331323133313231323231312323221112231311   >>    C22212323232133313113313331333132313331323132323131232322111223131   <<    C222123232321333131133133313331323133313231323231312323221112231313   >>      C222123232321333131133133313331323133313231323231312323221112231312   >>