C222133313331333131123313231333133313331323212331333132333112323221311   >>    C22213331333133313112331323133313331333132321233133313233311232322131   <<    C222133313331333131123313231333133313331323212331333132333112323221313   >>      C222133313331333131123313231333133313331323212331333132333112323221312   >>