# Bijective Function

For two sets $X=\{x\mid x\geq 19\}, Y=\{y\mid y\geq 361\},$ function $$f: X \to Y$$ is defined as $f(x)=x^2-2x+a.$ If $$f$$ is a one-to-one, bijective function, what is the value of the constant $$a?$$

×