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ss = gets.to_i
while ss > 0
	q = 1
	$stdin.readline.split.each {|n| q *= n.to_i}
	puts q
	ss -= 1
end

Success #stdin #stdout 0s 3432KB

stdin

2
10000000000000000000003253252300000000 2141254000000000000000000214
10000000000000000000003253252300000000 2141254000000000000000000214

stdout

21412540000000000000006968179500384200000000000696195992200000000
21412540000000000000006968179500384200000000000696195992200000000

https://ideone.com/cA9Vi

language:

Ruby (ruby 2.5.5)

created:

visibility:

public

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