Arrange the numbers vertically and horizontally to create 5×5 grid and arranged the alphabet inside the grid but since 26 ang alphabet you should combine it sa iisang square ang I and J.
1 2 3 4 5
1 A B C D E
2 F G H I/J K
3 L M N O P
4 Q R S T U
5 V W X Y Z
Ex. 43-15-45-31
S E U L
Try to decode this one:
43-23-15-42-31-34-13-25...23-34-31-32-15-43
Credit to: ShinichiLaaabs
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