import java.util.Scanner;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;

class Nov1 {

	public static void main(String[] args) {

		Scanner fin = null;
		PrintWriter pw = null;

		try {
			fin = new Scanner(new File("quizScores.txt"));
			pw = new PrintWriter(new File("quizScores.bkup"));
		}
		catch(FileNotFoundException e) {
			System.out.println("File not found");
			return;
		} 

		System.out.println("file is open for reading");

		fin.useDelimiter(",|\n");
	
		int counter = 0;
		int[] scores = new int[100];
			
		while(fin.hasNext()) {
			scores[counter++] = fin.nextInt();
		}
		fin.close();

		printArray(scores, counter);

		for(int i = 0; i < counter - 1; i++) {
			pw.printf("%d,", scores[i]);
		}
		pw.printf("%d", scores[counter-1]);

		pw.close();
	}

	static void printArray(int[] arr, int count) {
		for(int i = 0; i < count; i++) {
			System.out.printf("%d ", arr[i]);
		}
		System.out.println();
	}
}