C22212323232133313113313331333132313331311332313233232233213331   >>    C2221232323213331311331333133313231333131133231323323223321333   <<    C22212323232133313113313331333132313331311332313233232233213333   >>      C22212323232133313113313331333132313331311332313233232233213332   >>