C22212323232133313113313331333133313231323223323232322331333223311   >>    C2221232323213331311331333133313331323132322332323232233133322331   <<    C22212323232133313113313331333133313231323223323232322331333223313   >>      C22212323232133313113313331333133313231323223323232322331333223312   >>