C222123232321333131133133313331323132313331312112113232213211211   >>    C22212323232133313113313331333132313231333131211211323221321121   <<    C222123232321333131133133313331323132313331312112113232213211213   >>      C222123232321333131133133313331323132313331312112113232213211212   >>