C22212323232133313113313331333132313331311332313233232233122331   >>    C2221232323213331311331333133313231333131133231323323223312233   <<    C22212323232133313113313331333132313331311332313233232233122333   >>      C22212323232133313113313331333132313331311332313233232233122332   >>