C222123232321333131133133313331323132313331323132221311212121121   >>    C22212323232133313113313331333132313231333132313222131121212112   <<    C222123232321333131133133313331323132313331323132221311212121123   >>      C222123232321333131133133313331323132313331323132221311212121122   >>