Consider

\( D \times H : 4 \times 8 \)

A -> 1
B -> 2
C -> 3
D -> 4
.
.
.
.
x -> 24
y -> 25
z -> 26

Therefore, \( D \times H : 4 \times 8 \)

similarly

\( M \times Q ; 13 \times 17 \)