C22212323232133313113313331333132313231333132313222132211211131   >>    C2221232323213331311331333133313231323133313231322213221121113   <<    C22212323232133313113313331333132313231333132313222132211211133   >>      C22212323232133313113313331333132313231333132313222132211211132   >>