C22212323232133313113313331333132313331311332313233232233223331   >>    C2221232323213331311331333133313231333131133231323323223322333   <<    C22212323232133313113313331333132313331311332313233232233223333   >>      C22212323232133313113313331333132313331311332313233232233223332   >>