reducedEvents
      .persist(StorageLevel.MEMORY_AND_DISK)
      .foreach(x => {
        val maxC = x._2._2 + x._2._1.length - 1
        if (!targetType.equals(StringType)) {
          val maxCounter = if (targetType.equals(IntegerType))
            maxC % windowLength.get
          else // Blocks and bases for faster computing
            1
          val rightCovSumEdge = RightCovSumEdge(x._1, maxC, x._2._1.takeRight(maxCounter))
          val rightCovSumUpdate = new CovSumUpdate(ArrayBuffer(rightCovSumEdge))