C222123232321333131133133313331323132313331323132221332223323221   >>    C22212323232133313113313331333132313231333132313222133222332322   <<    C222123232321333131133133313331323132313331323132221332223323223   >>      C222123232321333131133133313331323132313331323132221332223323222   >>