C22212323232133313113313331333132313331323331123233121221133121   >>    C2221232323213331311331333133313231333132333112323312122113312   <<    C22212323232133313113313331333132313331323331123233121221133123   >>      C22212323232133313113313331333132313331323331123233121221133122   >>