Adding sprintf values using a loop

Dear group,

I'm trying to plot multiple subplots and adding names using loop.I tried to add a single name it works in a loop but adding multiple sprintf is snot changing the varibles ? What's the error in this?

Thanks in advance

figure
for k = 1 : 12
    for a = 1:12
            
   subplot(3,4,k);
   Spec = ' A%d', 'S%d ';
   caption = sprintf(Spec,k, a);
   
   title(caption, 'FontSize', 12, 'HorizontalAlignment', 'center');
   
end

end

Answer 1

[KALYAN ACHARJYA]

Spec =['A%d ','S%d'];

[Ramesh Bala]

Thank you for your answer Kalyan.

Only yhe A %d variable changes and S%d variable takes the static value of 12 and doesn;t change when running the code.

[Stephen23]

['A%d ','S%d']

is just a complex way of writing

'A%d S%d'

[KALYAN ACHARJYA]

yes sir Thanks @Stephen

@Ramesh Bala Are you looking for the following

Spec ='A%d S%d';
caption=sprintf(Spec,k,k)

if not, hope you noted about the nested loops iterations.