C222123232321333131133133313331323133313233311232313233232322132211   >>    C22212323232133313113313331333132313331323331123231323323232213221   <<    C222123232321333131133133313331323133313233311232313233232322132213   >>      C222123232321333131133133313331323133313233311232313233232322132212   >>