I think there is a rule based in there, so Like:
T^1 : (x , y) ------> (x+3 , y+1)
T^2: (x, y ) -------> (x +3 +3 , y+1+1) = (x+6, y+2)
So I think T^3 should be:
T^3: (x, y) -------> ( x+3+3+3 , y+1+1+1) = (x+9, y+3)
So the answer should be the 2nd.
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