There exists one logic in between input and output. Find it (easy math).
x=13 then y=339;
x=26 then y=1353;
2*x^2 + 1 :P
Finding Perfect Squares
Angle between two vectors
Sophie Germain prime
Test if two numbers have the same digits
convert tan to sin
match 2 string
Given a 4x4 matrix, swap the two middle columns
find radius of cone
Equal to their cube
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