C22212323232133313113313331333133313231323133311232332111312321   >>    C2221232323213331311331333133313331323132313331123233211131232   <<    C22212323232133313113313331333133313231323133311232332111312323   >>      C22212323232133313113313331333133313231323133311232332111312322   >>