Answer Happy

D̲e̲s̲i̲g̲n̲ ̲a̲ ̲t̲r̲a̲n̲s̲d̲u̲c̲e̲r̲ ̲T̲M̲ ̲t̲h̲a̲t̲
̲t̲a̲k̲e̲s̲ ̲a̲n̲ ̲i̲n̲p̲u̲t̲ ̲o̲n̲ ̲t̲h̲e̲ ̲a̲l̲p̲h̲a̲b̲e̲t̲
̲{̲a̲,̲b̲}̲,̲ ̲a̲n̲d̲ ̲r̲e̲p̲l̲a̲c̲e̲s̲ ̲a̲n̲y̲
̲c̲o̲n̲s̲e̲c̲u̲t̲i̲v̲e̲ ̲a̲’̲s̲ ̲o̲r̲ ̲b̲’̲s̲ ̲i̲n̲ ̲t̲h̲e̲
̲i̲n̲p̲u̲t̲ ̲s̲t̲r̲i̲n̲g̲ ̲w̲i̲t̲h̲ ̲s̲i̲n̲g̲l̲e̲ ̲a̲ ̲o̲r̲ ̲b̲,̲
̲r̲e̲s̲p̲e̲c̲t̲i̲v̲e̲l̲y̲.̲ ̲F̲o̲r̲ ̲e̲x̲a̲m̲p̲l̲e̲,̲ ̲i̲f̲ ̲t̲h̲e̲
̲i̲n̲p̲u̲t̲ ̲i̲s̲
̲b̲b̲b̲a̲a̲b̲a̲b̲b̲ ̲t̲h̲e̲ ̲o̲u̲t̲p̲u̲t̲ ̲s̲h̲o̲u̲l̲d̲ ̲b̲e̲
̲b̲a̲b̲a̲b̲ ̲(̲t̲h̲e̲r̲e̲f̲o̲r̲e̲,̲ ̲t̲h̲e̲ ̲o̲u̲t̲p̲u̲t̲ ̲i̲s̲
̲e̲i̲t̲h̲e̲r̲ ̲e̲m̲p̲t̲y̲,̲ ̲a̲ ̲s̲i̲n̲g̲l̲e̲ ̲a̲,̲ ̲a̲
̲s̲i̲n̲g̲l̲e̲ ̲b̲,̲ ̲o̲r̲
̲a̲/̲b̲ ̲a̲l̲t̲e̲r̲n̲a̲t̲i̲v̲e̲l̲y̲)̲.̲
̲B̲r̲i̲e̲f̲l̲y̲,̲ ̲e̲x̲p̲l̲a̲i̲n̲ ̲h̲o̲w̲ ̲y̲o̲u̲r̲ ̲T̲M̲
̲w̲o̲r̲k̲s̲.̲