C22212323232133313113313331333133313231323132222123123321132211   >>    C2221232323213331311331333133313331323132313222212312332113221   <<    C22212323232133313113313331333133313231323132222123123321132213   >>      C22212323232133313113313331333133313231323132222123123321132212   >>