C1111233131211111211113313331333133313331322322331333133112312132231   >>    C111123313121111121111331333133313331333132232233133313311231213223   <<    C1111233131211111211113313331333133313331322322331333133112312132233   >>      C1111233131211111211113313331333133313331322322331333133112312132232   >>