Construct a trace table to trace the action of the algorithm below for the input variables given.

$a$:$=1,574,b$:$=482,r$:$=482$

while $(b0)$

$r$:$=$amodb

$a$:$=b$

$b$:$=r$

end while

$,gcd$:$=a$

$gcd(1,574,482)=$

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