C3123121111331312121111331333132313331333133313221211113313331323232131   >>    C312312111133131212111133133313231333133313331322121111331333132323213   <<    C3123121111331312121111331333132313331333133313221211113313331323232133   >>      C3123121111331312121111331333132313331333133313221211113313331323232132   >>