C22212323232133313113313331333132313331323133313332331132222131223323211   >>    C2221232323213331311331333133313231333132313331333233113222213122332321   <<    C22212323232133313113313331333132313331323133313332331132222131223323213   >>      C22212323232133313113313331333132313331323133313332331132222131223323212   >>