#[allow(unused_imports)]
use std::char::from_digit;
#[allow(unused_imports)]
use std::cmp::{max, min};
#[allow(unused_imports)]
use std::collections::{BTreeMap, BTreeSet, BinaryHeap, HashMap, HashSet, VecDeque};
#[allow(unused_imports)]
use std::fs::File;
#[allow(unused_imports)]
use std::io::prelude::*;
#[allow(unused_imports)]
use std::io::{stdin, stdout, BufReader, BufWriter, Stdin, Stdout, Write};
#[allow(unused_imports)]
use std::mem::swap;
#[allow(unused_imports)]
use std::str::FromStr;
 
type BoxResult<T> = Result<T, Box<std::error::Error>>;

const OFFSET: i64 = 80 * 160;
const LEN: usize = 160 * 160 + 1;

fn main() {
    let mut scanner = Scanner::new(stdin());
    let line = scanner.read_vector::<usize>().unwrap();
    let (h, w) = (line[0], line[1]);
    let mut mat1 = vec![];
    for _ in 0..h {
        let line = scanner.read_vector::<i64>().unwrap();
        mat1.push(line);
    }
    let mut mat2 = vec![];
    for _ in 0..h {
        let line = scanner.read_vector::<i64>().unwrap();
        mat2.push(line);
    }
    let mut dp = vec![vec![vec![false; LEN]; w]; h];
    let diff = mat1[0][0] - mat2[0][0];
    dp[0][0][(diff + OFFSET) as usize] = true;
    dp[0][0][(-diff + OFFSET) as usize] = true;
    for i in 0..h {
        for j in 0..w {
            if i == 0 && j == 0 {
                continue;
            }
            let diff = mat1[i][j] - mat2[i][j];
            if j > 0 {
                for k in 0..LEN {
                    if dp[i][j - 1][k] {
                        dp[i][j][(k as i64 + diff) as usize] = true;
                        dp[i][j][(k as i64 - diff) as usize] = true;
                    }
                }
            }
            if i > 0 {
                for k in 0..LEN {
                    if dp[i - 1][j][k] {
                        dp[i][j][(k as i64 + diff) as usize] = true;
                        dp[i][j][(k as i64 - diff) as usize] = true;
                    }
                }
            }
        }
    }
    let mut ans = std::i64::MAX;
    for i in 0..LEN {
        if !dp[h - 1][w - 1][i] {
            continue;
        }
        let diff = (i as i64 - OFFSET).abs();
        ans = min(ans, diff);
    }
    println!("{}", ans);
}

#[allow(dead_code)]
struct Scanner<R> {
    reader: BufReader<R>,
    buffer: String,
}
impl<R> Scanner<R>
where
    R: Read,
{
    #[allow(dead_code)]
    fn new(inner: R) -> Scanner<R> {
        let reader = BufReader::new(inner);
        let buffer = String::new();
        Scanner {
            reader: reader,
            buffer: buffer,
        }
    }
    #[allow(dead_code)]
    fn with_capacity(capacity: usize, inner: R) -> Scanner<R> {
        let reader = BufReader::with_capacity(capacity, inner);
        let buffer = String::new();
        Scanner {
            reader: reader,
            buffer: buffer,
        }
    }
 
    #[allow(dead_code)]
    fn read_line(&mut self) -> BoxResult<String> {
        self.reader.read_line(&mut self.buffer)?;
        let cloned = self.buffer.trim().to_string();
        self.buffer.clear();
        Ok(cloned)
    }
 
    #[allow(dead_code)]
    fn read<T>(&mut self) -> BoxResult<T>
    where
        T: FromStr,
        T::Err: std::fmt::Debug,
        T::Err: std::error::Error,
        T::Err: 'static,
    {
        self.reader.read_line(&mut self.buffer)?;
        let parsed = self.buffer.trim().parse()?;
        self.buffer.clear();
        Ok(parsed)
    }
    #[allow(dead_code)]
    fn read_vector<T>(&mut self) -> BoxResult<Vec<T>>
    where
        T: FromStr,
        T::Err: std::fmt::Debug,
        T::Err: std::error::Error,
        T::Err: 'static,
    {
        self.reader.read_line(&mut self.buffer)?;
        let parsed_vec = self
            .buffer
            .trim()
            .split_whitespace()
            .map(|s| s.parse())
            .collect::<Result<Vec<_>, _>>()?;
        self.buffer.clear();
        Ok(parsed_vec)
    }
    #[allow(dead_code)]
    fn read_matrix<T>(&mut self, lines: usize) -> BoxResult<Vec<Vec<T>>>
    where
        T: FromStr,
        T::Err: std::fmt::Debug,
        T::Err: std::error::Error,
        T::Err: 'static,
    {
        let mut parsed_matrix = vec![];
        for _ in 0..lines {
            self.reader.read_line(&mut self.buffer)?;
            parsed_matrix.push(
                self.buffer
                    .trim()
                    .split_whitespace()
                    .map(|s| s.parse())
                    .collect::<Result<Vec<_>, _>>()?,
            );
            self.buffer.clear();
        }
        Ok(parsed_matrix)
    }
    #[allow(dead_code)]
    fn read_chars(&mut self) -> BoxResult<Vec<char>> {
        self.reader.read_line(&mut self.buffer)?;
        let chars = self.buffer.trim().chars().collect::<Vec<_>>();
        self.buffer.clear();
        Ok(chars)
    }
}

Measured memory_bytes: 215292