echoing letters into the console

[Conservative]

I need to echo a letter into the console, and double it up on that same line depending on the number from a variable

example:

%a=3;

>echos aaa into the console

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[Nexus]

For(%i=0; %i<%a; %i++)
   %s = %s @ "a";
Echo(%s);

[Conservative]

For(%i=0; %i<%a; %i++)
   %s = %s @ "a";
Echo(%s);

Thanks