C22212323232133313113313331333133313231323132222123123321132221   >>    C2221232323213331311331333133313331323132313222212312332113222   <<    C22212323232133313113313331333133313231323132222123123321132223   >>      C22212323232133313113313331333133313231323132222123123321132222   >>