C222123232321333131133133313331323133313231323231312323222221321   >>    C22212323232133313113313331333132313331323132323131232322222132   <<    C222123232321333131133133313331323133313231323231312323222221323   >>      C222123232321333131133133313331323133313231323231312323222221322   >>