C11111211113313112113313331333133313331333132212111133133313331333133312113321   >>    C1111121111331311211331333133313331333133313221211113313331333133313331211332   <<    C11111211113313112113313331333133313331333132212111133133313331333133312113323   >>      C11111211113313112113313331333133313331333132212111133133313331333133312113322   >>