A memorial plaque can be found where the inventor is buried.
The fifth line of the plaque contains M words.
The sixth line of the plaque contains N words.
He had a job here for Y years.
There is one word on the fourth line. It has Z letters.
The final cache can be found at:
A= (N - 1) x 2
B = (Y x 11) - Z
C = (M x 7) + 1
D = (Z x 10) + 4
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