C222123232321333131133133313331323132313331312112113232232233111   >>    C22212323232133313113313331333132313231333131211211323223223311   <<    C222123232321333131133133313331323132313331312112113232232233113   >>      C222123232321333131133133313331323132313331312112113232232233112   >>