C222133313331333131123313231333133313331323212331333132313311232233221   >>    C22213331333133313112331323133313331333132321233133313231331123223322   <<    C222133313331333131123313231333133313331323212331333132313311232233223   >>      C222133313331333131123313231333133313331323212331333132313311232233222   >>