C2221333133313331311233132313331333133313231133132313331311233132212331   >>    C222133313331333131123313231333133313331323113313231333131123313221233   <<    C2221333133313331311233132313331333133313231133132313331311233132212333   >>      C2221333133313331311233132313331333133313231133132313331311233132212332   >>