import java.io.*;

class Demo {
    public static void main (String[] args) {
	BufferedReader in = null;
	PrintWriter out = null;
	int sum = 0;
	try {
	    in = new BufferedReader(new FileReader(args[0]));
	    out = new PrintWriter(new FileWriter(args[1]));
	    String line;
	    while ((line = in.readLine()) != null) {
		int n = 0;
		try {
		    n = Integer.parseInt(line);
		}
		catch (NumberFormatException e) {
		    System.out.println("invalid number");
		}
		sum += n;
		out.println("The sum is " + sum);
	    }
	    out.println("The sum is " + sum);
	    in.close();
	    //	    out.close();
	}
	catch (IOException e) {
	    System.out.println(e);
	}
    }
}