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Mathematicians invented a magic box.
66

Test and analysis: put the real number pair (-2,3) in to get the real number m, work out the value of m, and then put (8, 1) in to get the real number.

The real number pair (-2,3) is put in, that is,

Then put the real number pair (m, 1), that is, (8, 1), and the real number is.

∴ After the real number pair (m, 1) is put in, the real number is 66.

Comments: The key to solving this problem is to master the calculation according to the relationship given in the problem, and it needs to be calculated twice to solve the problem.