% Define the matrices A, B, and C
A = [3 -2 1; 6 8 -5; 7 9 10];
B = [6 9 -4; 7 5 3; -8 2 1];
C = [-7 -5 2; 10 6 1; 3 -9 8];
 
% Create a 3D array D where each matrix is a layer
D = cat(3, A, B, C);
 
% Find the largest element in each layer
max_A = max(A(:));  % Max of the first layer (A)
max_B = max(B(:));  % Max of the second layer (B)
max_C = max(C(:));  % Max of the third layer (C)
 
% Find the largest element in the entire array D
max_D = max(D(:));
 
% Display the results
fprintf('Largest element in matrix A: %d\n', max_A);
fprintf('Largest element in matrix B: %d\n', max_B);
fprintf('Largest element in matrix C: %d\n', max_C);
fprintf('Largest element in the entire array D: %d\n', max_D);
 

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