object Main{
  def main(args: Array[String]){
    val input=io.Source.stdin.getLines().mkString("\n")
    println(solve(input).trim())
  }

  def solve(input:String):String={
    val splitted = input.split("\n")
    val n = splitted(0).toInt
    val abs = splitted.slice(1,n+1).map(_.split(" ").map(_.toInt))
    val m = splitted(n+1).toInt
    val xys = splitted.slice(n+2,n+m+2).map(_.split(" ").map(_.toInt))
    val cnt = xys.map{xy=>abs.count{ab=>(xy(0)<=ab(0)&&xy(1)>=ab(1))}}
    val max = cnt.max
    if(max==0){
      "0"
    }else{
      cnt.zipWithIndex.withFilter{v => v._1==max}.map{v => v._2+1}.mkString("\n")
    }
  }
}