package io.StdIn

object Main extends App
{
    println("Type two numbers")
    val a = readLine()
    val b = readLine()

    println(addNumbers(a,b))


    def addNumbers(a: String, b: String) : String =
      {

        if(a>b){
           var result = new Array[Int](a.length+1)
         }
        else{
           var result = new Array[Int](b.length+1)
         }

        var i = 0

        while(i<result.length)
        {
          result(i) = a(i).toInt + b(i).toInt
          if(result(i)>=10)
          {
            result(i)-=10
            result(i+1)+=1
          }
        }
        result.toString
      }
}