How to find all combinations of 3 of matrices but get the results named

I have 1X1 matrices A = 2, B= 4 , C5 =10 , D=2 etc , basically 40 of such matrices, (I dont mind combining them into one matrix) I want every possible combination of 3 but a way to know which matrices made up each matrix.

for e.g if i get the combination 2 4 10 , I want to know that it came from D, B and C

Answer 1

[Star Strider]

One possibility:

VblNames = {'A' 'B' 'C5' 'D'};
VblVals  = {2, 4, 10, 2};

idx = nchoosek(1:size(VblNames,2), 3);

Out = {VblNames(idx); VblVals(idx)};
Out{:}

ans = 

      'A'    'B'     'C5'
      'A'    'B'     'D' 
      'A'    'C5'    'D' 
      'B'    'C5'    'D' 

ans = 

      [2]    [ 4]    [10]
      [2]    [ 4]    [ 2]
      [2]    [10]    [ 2]
      [4]    [10]    [ 2]