Instruction: Given a query and a list of products denoted as A, B, C, ... with their titles, rank the products according to their relevance to the query. Output only a ranked list in which the most relevant product is at the top of the list.

Input:
Query: test blood sugar without pricking your finger
Product list:
A: Metene Fingertip Pulse Oximeter, Blood Oxygen Saturation Monitor with Alarming Beep, Metene Portable SpO2 Meter with Batteries and Lanyard
B: Zacurate 500BL Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor with Batteries and Lanyard Included (Navy Blue)
C: AUVON DS-W Blood Sugar Test Kit (100 Test Strips, 100 30G Lancets), High-Tech Diabetes Blood Glucose Meter (No Coding Required) with Lancing Device
Answer: C,A,B