C22212323232133313113313331333133313231323133313331121231221321121121133111   >>    C2221232323213331311331333133313331323132313331333112123122132112112113311   <<    C22212323232133313113313331333133313231323133313331121231221321121121133113   >>      C22212323232133313113313331333133313231323133313331121231221321121121133112   >>