C222123232321333131133133313331323133313231322132313121121212211   >>    C22212323232133313113313331333132313331323132213231312112121221   <<    C222123232321333131133133313331323133313231322132313121121212213   >>      C222123232321333131133133313331323133313231322132313121121212212   >>