C222123232321333131133133313331323133313231323133311322122221233121   >>    C22212323232133313113313331333132313331323132313331132212222123312   <<    C222123232321333131133133313331323133313231323133311322122221233123   >>      C222123232321333131133133313331323133313231323133311322122221233122   >>