C222123232321333131133133313331323133313231333133312131323313223211   >>    C22212323232133313113313331333132313331323133313331213132331322321   <<    C222123232321333131133133313331323133313231333133312131323313223213   >>      C222123232321333131133133313331323133313231333133312131323313223212   >>