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Select the filter value that will transform the left element into the right one
P.S: The green/red borders aren’t part of the filtered area

#1 f16

#2 f15

#3 f14

#4 f8

#5 f11

#6 f10

#7 f3

#8 f12

#9 f1

#10 f13

#11 f19

#12 f20

#13 f7

#14 f18

#15 f4
Your Result
-
I am sure you will do better next time