Matching elements in a matrix with elements in another matrix

I have a matrix,

A=[1 3 4 
   3 1 5 
 NaN 3 6]

and another index matrix

B=[1 333
    2 356
    3 112
    4 789
    5 762
    6 221
    7 876
    8 922]

I want to match the elements in matrix A with the correesponding index (1st column) in matrix B and return

C=[333 112 789
    112 333 762
    NaN 112 221]

I tried using ismember, (by first making matrix A to a vector), however it did not work

Answer 1

[Stephen23]

>> [idx,idy] = ismember(A,B(:,1));
>> C = nan(size(A));
>> C(idx) = B(idy(idx),2)
C =
   333   112   789
   112   333   762
   NaN   112   221

[SChow]

Thanks a lot! It works! :) :)