C22212323232133313113313331333133313231323133313331121231221321223331313321   >>    C2221232323213331311331333133313331323132313331333112123122132122333131332   <<    C22212323232133313113313331333133313231323133313331121231221321223331313323   >>      C22212323232133313113313331333133313231323133313331121231221321223331313322   >>