C222123232321333131133133313331323132313331312112113233221121221   >>    C22212323232133313113313331333132313231333131211211323322112122   <<    C222123232321333131133133313331323132313331312112113233221121223   >>      C222123232321333131133133313331323132313331312112113233221121222   >>