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- import scala.io._
- import java.io._
- import scala.collection.mutable.ArrayBuffer
- object Main {
- def main(args: Array[String]): Unit = {
- var i = 0
- var v1: ArrayBuffer[String] = new ArrayBuffer(10000)
- var v2: ArrayBuffer[String] = new ArrayBuffer(10000)
- Source.stdin.getLines.foreach{
- x =>
- val arr = x.split(' ')
- v1 += arr(0)
- v2 += arr(1)
- i += 1
- }
- val writer = new PrintWriter(System.out)
- for {
- x <- v1
- y <- v2
- } yield writer.write(x + y + "\n")
- writer.flush()
- writer.close()
- }
- }
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