C22121333132313311211113313331333133313331333133112323133313231   >>    C2212133313231331121111331333133313331333133313311232313331323   <<    C22121333132313311211113313331333133313331333133112323133313233   >>      C22121333132313311211113313331333133313331333133112323133313232   >>