C22212323232133313113313331333132313331323123233232321231132221   >>    C2221232323213331311331333133313231333132312323323232123113222   <<    C22212323232133313113313331333132313331323123233232321231132223   >>      C22212323232133313113313331333132313331323123233232321231132222   >>