C222123232321333131133133313331323133313231333133323311322233223323211   >>    C22212323232133313113313331333132313331323133313332331132223322332321   <<    C222123232321333131133133313331323133313231333133323311322233223323213   >>      C222123232321333131133133313331323133313231333133323311322233223323212   >>