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  1. cnt = gets.to_i
  2. i = 0
  3. while i < cnt
  4. puts gets.to_i*gets.to_i
  5. puts "\n"
  6. i++
  7. end
Success #stdin #stdout 0s 3424KB
stdin
5
4 2
123 43
324 342
0 12
9999 12345
stdout
Standard output is empty