C222123232321333131133133313331323133313231323231312323232213231331   >>    C22212323232133313113313331333132313331323132323131232323221323133   <<    C222123232321333131133133313331323133313231323231312323232213231333   >>      C222123232321333131133133313331323133313231323231312323232213231332   >>