C222123232321333131133133313331323132313331322121323121313221321   >>    C22212323232133313113313331333132313231333132212132312131322132   <<    C222123232321333131133133313331323132313331322121323121313221323   >>      C222123232321333131133133313331323132313331322121323121313221322   >>