C11111211113313112113313331333133313331333132322121111331132331   >>    C1111121111331311211331333133313331333133313232212111133113233   <<    C11111211113313112113313331333133313331333132322121111331132333   >>      C11111211113313112113313331333133313331333132322121111331132332   >>