package project1_demo;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Scanner;

public class Project1_demo {

	public static void main(String[] args) throws IOException {
		FileInputStream inputFiles[] = new FileInputStream[9];
		for (int i = 0; i < 9; i++) {
			inputFiles[i] = new FileInputStream("Photo_" + String.valueOf(i + 1) + ".ppm");
		}
		Scanner scanners[] = new Scanner[9];
		for (int i = 0; i < 9; i++) {
			scanners[i] = new Scanner(inputFiles[i]);
		}
		FileOutputStream outputFile = new FileOutputStream("output.ppm");
		PrintWriter writer = new PrintWriter(outputFile);

		//Jump over the first 4 values in each input file.
		for (int i = 0; i < 9; i++) {
			scanners[i].next();
			scanners[i].next();
			scanners[i].next();
			scanners[i].next();
		}

		//Write the "header" to the output file.
		writer.println("P3\n800 600\n255");
		for (int i = 0; i < 800 * 600 * 3; i++) {
			int[] arr = new int[9];
			for (int j = 0; j < 9; j++) {
				arr[j] = scanners[j].nextInt();
			}

			//Get the majority element in arr.
			//1) Sort the arr,
			//2) Get the median.
			Arrays.sort(arr);
			writer.println(arr[arr.length / 2]);
		}

		writer.close();
		outputFile.close();
		for (int i = 0; i < 9; i++) {
			scanners[i].close();
			inputFiles[i].close();
		}

	}

}