C22212323232133313113313331333132313331323133313332331132223232321   >>    C2221232323213331311331333133313231333132313331333233113222323232   <<    C22212323232133313113313331333132313331323133313332331132223232323   >>      C22212323232133313113313331333132313331323133313332331132223232322   >>