public void pass1(){
		int i=0;
		List<String> R1,R2;
		while(i<RFilesPath.length){
			R1=DataManager.get(RFilesPath[i]);
			try{
				R2=DataManager.get(RFilesPath[i+1]);
			}
			catch(ArrayIndexOutOfBoundsException e){
				R2=null;
			}
			save(mergeSort(R1,R2),new StringBuilder().append(i).append(i+1).toString());
			i=i+2;
		}
	}