C222123232321333131133133313331323133313231322132313121212221313221   >>    C22212323232133313113313331333132313331323132213231312121222131322   <<    C222123232321333131133133313331323133313231322132313121212221313223   >>      C222123232321333131133133313331323133313231322132313121212221313222   >>