C11111211113313112113313331333133313331333133213331333133313331323223332311   >>    C1111121111331311211331333133313331333133313321333133313331333132322333231   <<    C11111211113313112113313331333133313331333133213331333133313331323223332313   >>      C11111211113313112113313331333133313331333133213331333133313331323223332312   >>