C22212323232133313113313331333133313231323133313331121231221313322112121   >>    C2221232323213331311331333133313331323132313331333112123122131332211212   <<    C22212323232133313113313331333133313231323133313331121231221313322112123   >>      C22212323232133313113313331333133313231323133313331121231221313322112122   >>