C11111211113313112113313331333133312111113331333133313331121132223321   >>    C1111121111331311211331333133313331211111333133313331333112113222332   <<    C11111211113313112113313331333133312111113331333133313331121132223323   >>      C11111211113313112113313331333133312111113331333133313331121132223322   >>