C22212323232133313113313331333132313331323132321311333112313131   >>    C2221232323213331311331333133313231333132313232131133311231313   <<    C22212323232133313113313331333132313331323132321311333112313133   >>      C22212323232133313113313331333132313331323132321311333112313132   >>