C3123121111113313121111331333133313331333223313231333132233132323231   >>    C312312111111331312111133133313331333133322331323133313223313232323   <<    C3123121111113313121111331333133313331333223313231333132233132323233   >>      C3123121111113313121111331333133313331333223313231333132233132323232   >>