macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        let mut next = || { iter.next().unwrap() };
        input_inner!{next, $($r)*}
    };
    ($($r:tt)*) => {
        let stdin = std::io::stdin();
        let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
        let mut next = move || -> String {
            bytes
                .by_ref()
                .map(|r| r.unwrap() as char)
                .skip_while(|c| c.is_whitespace())
                .take_while(|c| !c.is_whitespace())
                .collect()
        };
        input_inner!{next, $($r)*}
    };
}

macro_rules! input_inner {
    ($next:expr) => {};
    ($next:expr, ) => {};

    ($next:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($next, $t);
        input_inner!{$next $($r)*}
    };

    ($next:expr, mut $var:ident : $t:tt $($r:tt)*) => {
        let mut $var = read_value!($next, $t);
        input_inner!{$next $($r)*}
    };
}

macro_rules! read_value {
    ($next:expr, ( $($t:tt),* )) => {
        ( $(read_value!($next, $t)),* )
    };

    ($next:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
    };

    ($next:expr, [ $t:tt ]) => {
        {
            let len = read_value!($next, usize);
            (0..len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
        }
    };

    ($next:expr, chars) => {
        read_value!($next, String).chars().collect::<Vec<char>>()
    };

    ($next:expr, usize1) => {
        read_value!($next, usize) - 1
    };

    ($next:expr, $t:ty) => {
        $next().parse::<$t>().expect("Parse error")
    };
}

#[allow(unused_imports)]
use std::cmp::{min, max};

fn main() {
    input!{
        h: usize,
        w: usize,
        a: [[i64; w]; h],
        b: [[i64; w]; h]
    }
    let mut v: Vec<Vec<usize>> = vec![vec![0; w]; h];
    for i in 0..h {
        for j in 0..w {
            v[i][j] = (a[i][j] - b[i][j]).abs() as usize;
        }
    }
    let cmax = (h + w - 1) * 80 + 1;
    let mut dp = vec![vec![vec![false; cmax]; w]; h];
    dp[0][0][v[0][0]] = true;
    for i in 0..h - 1 {
        for j in 0..w - 1 {
            for k in 0..v[i][j + 1] {
                dp[i][j + 1][v[i][j + 1] - k] |= dp[i][j][k];
            }
            for k in v[i][j + 1]..cmax {
                dp[i][j + 1][k - v[i][j + 1]] |= dp[i][j][k];
            }
            for k in 0..cmax - v[i][j + 1] {
                dp[i][j + 1][k + v[i][j + 1]] |= dp[i][j][k];
            }
            for k in 0..v[i + 1][j] {
                dp[i + 1][j][v[i + 1][j] - k] |= dp[i][j][k];
            }
            for k in v[i + 1][j]..cmax {
                dp[i + 1][j][k - v[i + 1][j]] |= dp[i][j][k];
            }
            for k in 0..cmax - v[i + 1][j] {
                dp[i + 1][j][k + v[i + 1][j]] |= dp[i][j][k];
            }
        }
        for k in 0..v[i + 1][w - 1] {
            dp[i + 1][w - 1][v[i + 1][w - 1] - k] |= dp[i][w - 1][k];
        }
        for k in v[i + 1][w - 1]..cmax {
            dp[i + 1][w - 1][k - v[i + 1][w - 1]] |= dp[i][w - 1][k];
        }
        for k in 0..cmax - v[i + 1][w - 1] {
            dp[i + 1][w - 1][k + v[i + 1][w - 1]] |= dp[i][w - 1][k];
        }
    }
    for j in 0..w - 1 {
        for k in 0..v[h - 1][j + 1] {
            dp[h - 1][j + 1][v[h - 1][j + 1] - k] |= dp[h - 1][j][k];
        }
        for k in v[h - 1][j + 1]..cmax {
            dp[h - 1][j + 1][k - v[h - 1][j + 1]] |= dp[h - 1][j][k];
        }
        for k in 0..cmax - v[h - 1][j + 1] {
            dp[h - 1][j + 1][k + v[h - 1][j + 1]] |= dp[h - 1][j][k];
        }
    }
    for k in 0..cmax {
        if dp[h - 1][w - 1][k] {
            println!("{}", k);
            return;
        }
    }
}


Measured memory_bytes: 96508