We have encoded a message by assigning the numbers 1

Question

We have encoded a message by assigning the numbers 1 - 26 to the letters a - z of the alphabet, respectively, and
assigning 27 to a blank space. We have further encoded it by using an encoding matrix. Decode this message by finding
the inverse of the encoding matrix and multiplying it times the coded message.
-The encoding matrix i $$A = \left[ \begin{array} { l l l } 
1 & 2 & 2 \
1 & 3 & 2 \
1 & 2 & 3
\end{array} \right] \text { and the encoded message is } 88,103,115,84,99,104,41,43,46,40,49,45$$ 86, 91, 113, 52, 61, 65.

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The Answer of We have encoded a message by assigning the numbers 1 - 26 to the letters a - z of the alphabet, respectively, and
assigning 27 to a blank space. We have further encoded it by using an encoding matrix. Decode this message by finding
the inverse of the encoding matrix and multiplying it times the coded message.
-The encoding matrix i $$A = \left[ \begin{array} { l l l } 
1 & 2 & 2 \
1 & 3 & 2 \
1 & 2 & 3
\end{array} \right] \text { and the encoded message is } 88,103,115,84,99,104,41,43,46,40,49,45$$ 86, 91, 113, 52, 61, 65.