C22212323232133313113313331333132313331323133313331213132331313312321   >>    C2221232323213331311331333133313231333132313331333121313233131331232   <<    C22212323232133313113313331333132313331323133313331213132331313312323   >>      C22212323232133313113313331333132313331323133313331213132331313312322   >>