C22212323232133313113313331333132313231333131211211323313213112121   >>    C2221232323213331311331333133313231323133313121121132331321311212   <<    C22212323232133313113313331333132313231333131211211323313213112123   >>      C22212323232133313113313331333132313231333131211211323313213112122   >>