C22212323232133313113313331333133313231323133313331121231221312321   >>    C2221232323213331311331333133313331323132313331333112123122131232   <<    C22212323232133313113313331333133313231323133313331121231221312323   >>      C22212323232133313113313331333133313231323133313331121231221312322   >>