import java.io.Closeable;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.NoSuchElementException;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		test("10000000.txt",10000000,1,1,1000000000);
	}
	public static void test(String filename,int h,int w,int min,int max) {
		try {
			generate(filename, h, w, min, max);
			bm1(filename);
			bm2(filename);
			bm3(filename);
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	public static void generate(String filename,int h,int w,int min,int max) {
		try(PrintWriter pw = new PrintWriter(filename)) {
			pw.println(h + " " + w);
			for(int i=0;i<h;i++) {
				for(int j=0;j<w;j++) {
					if (j > 0) {
						pw.print(' ');
					}
					pw.print(randomInt(min, max));
				}
				pw.println();
			}
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
	}
	public static int randomInt(int min,int max) {
		return (int) (Math.random() * (max - min + 1)) + min;
	}
	public static void bm1(String filename) throws FileNotFoundException {
		long stime = System.nanoTime();
		Scanner sc = new Scanner(new File(filename));
		int h = sc.nextInt();
		int w = sc.nextInt();
		long sum = 0;
		for(int i=0;i<h;i++) {
			for(int j=0;j<w;j++) {
				sum += sc.nextInt();
			}
		}
		System.out.println(sum);
		System.out.println((System.nanoTime() - stime) / 1000000 + " ms");
		sc.close();
	}
	public static void bm2(String filename) throws FileNotFoundException {
		long stime = System.nanoTime();
		Scanner sc = new Scanner(new File(filename));
		int h = Integer.parseInt(sc.next());
		int w = Integer.parseInt(sc.next());
		long sum = 0;
		for(int i=0;i<h;i++) {
			for(int j=0;j<w;j++) {
				sum += Integer.parseInt(sc.next());
			}
		}
		System.out.println(sum);
		System.out.println((System.nanoTime() - stime) / 1000000 + " ms");
		sc.close();
	}
	public static void bm3(String filename) throws FileNotFoundException {
		long stime = System.nanoTime();
		FastScanner sc = new FastScanner(new FileInputStream(filename));
		int h = sc.nextInt();
		int w = sc.nextInt();
		long sum = 0;
		for(int i=0;i<h;i++) {
			for(int j=0;j<w;j++) {
				sum += sc.nextInt();
			}
		}
		System.out.println(sum);
		System.out.println((System.nanoTime() - stime) / 1000000 + " ms");
		sc.close();
	}
}
class FastScanner implements Closeable {
	private final InputStream in;
	private final byte[] buffer = new byte[1024];
	private int ptr = 0;
	private int buflen = 0;
	public FastScanner(InputStream in) {
		this.in = in;
	}
	private boolean hasNextByte() {
		if (ptr < buflen) {
			return true;
		}else{
			ptr = 0;
			try {
				buflen = in.read(buffer);
			} catch (IOException e) {
				e.printStackTrace();
			}
			if (buflen <= 0) {
				return false;
			}
		}
		return true;
	}
	private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
	private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
	public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}
	public String next() {
		if (!hasNext()) throw new NoSuchElementException();
		StringBuilder sb = new StringBuilder();
		int b = readByte();
		while(isPrintableChar(b)) {
			sb.appendCodePoint(b);
			b = readByte();
		}
		return sb.toString();
	}
	public long nextLong() {
		if (!hasNext()) throw new NoSuchElementException();
		long n = 0;
		boolean minus = false;
		int b = readByte();
		if (b == '-') {
			minus = true;
			b = readByte();
		}
		if (b < '0' || '9' < b) {
			throw new NumberFormatException();
		}
		while(true){
			if ('0' <= b && b <= '9') {
				n *= 10;
				n += b - '0';
			}else if(b == -1 || !isPrintableChar(b)){
				return minus ? -n : n;
			}else{
				throw new NumberFormatException();
			}
			b = readByte();
		}
	}
	public int nextInt() {
		long nl = nextLong();
		if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
		return (int) nl;
	}
	public double nextDouble() { return Double.parseDouble(next());}
	public void close() {
		try {
			in.close();
		} catch (IOException e) {
		}
	}
}