C222123232321333131133133313331323133313231323231312323223131211   >>    C22212323232133313113313331333132313331323132323131232322313121   <<    C222123232321333131133133313331323133313231323231312323223131213   >>      C222123232321333131133133313331323133313231323231312323223131212   >>