C222123232321333131133133313331323133313231322132313121311233213311   >>    C22212323232133313113313331333132313331323132213231312131123321331   <<    C222123232321333131133133313331323133313231322132313121311233213313   >>      C222123232321333131133133313331323133313231322132313121311233213312   >>