C222133313331333131123313231333133313331323212331333132313332322221   >>    C22213331333133313112331323133313331333132321233133313231333232222   <<    C222133313331333131123313231333133313331323212331333132313332322223   >>      C222133313331333131123313231333133313331323212331333132313332322222   >>