#![allow(unused_mut, non_snake_case,unused_imports)]
use std::iter;
use std::cmp::{max, min, Ordering};
use std::iter::FromIterator;
use std::sync::{Arc,Mutex};

//　高速 EOF要
macro_rules! input {(source = $s:expr, $($r:tt)*) => {let mut iter = $s.split_whitespace();input_inner!{iter, $($r)*}};($($r:tt)*) => {let mut s = {use std::io::Read;let mut s = String::new();std::io::stdin().read_to_string(&mut s).unwrap();s};let mut iter = s.split_whitespace();input_inner!{iter, $($r)*}};}
macro_rules! input_inner {($iter:expr) => {};($iter:expr, ) => {};($iter:expr, $var:ident : $t:tt $($r:tt)*) => {let $var = read_value!($iter, $t);input_inner!{$iter $($r)*}};}
macro_rules! read_value {($iter:expr, ( $($t:tt),* )) => {( $(read_value!($iter, $t)),* )};($iter:expr, [ $t:tt ; $len:expr ]) => {(0..$len).map(|_| read_value!($iter, $t)).collect::<Vec<_>>()};($iter:expr, chars) => {read_value!($iter, String).chars().collect::<Vec<char>>()};($iter:expr, usize1) => {read_value!($iter, usize) - 1};($iter:expr, $t:ty) => {$iter.next().unwrap().parse::<$t>().expect("Parse error")};}
// 低速 EOF不要
//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)*}};}
//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, 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")};}

/*
 <url:>
 問題文============================================================
 =================================================================
 解説=============================================================
 ================================================================
 */

fn calc(N:usize,V:Vec<usize>) -> usize{
    let mut ret = 0;
    let mut T = 0;

//    for i in 0..N{
//        for j in i+1..N{
//            T = 0;
//            for k in 0..i{
//                if V[i] > V[j]{ // 凸
//                    if V[i] > V[k]{
//                        T = max(T,V[i]);
//                        break;
//                    }
//                    continue;
//                }
//                if V[i] < V[j]{ // 凹
//                    if V[k] > V[i]{
//                        T = max(T,max(V[j],V[k]));
//                    }
//                }
//            }
//            for k in i+1..j{
//                if V[k] > V[i] && V[k] > V[j]{// 凸
//                    T = max(T,V[k]);
//                    continue;
//                }
//                if V[k] < V[i] && V[k] < V[j]{// 凹
//                    T = max(T,max(V[i],V[j]));
//                    break;
//                }
//
//            }
//            for k in j+1..N{
//                if V[j] > V[i] { // 凸
//                    if V[j] > V[k]{
//                        T = max(T,V[j]);
//                        break;
//                    }
//                }
//                if V[j] < V[i]{
//                    if V[j] < V[k]{
//                        T = max(T,max(V[i],V[k]));
//                    }
//                }
//            }
//            ret += T;
//        }
//    }

    let mut Lmin= 1000;
    let mut Lmax= 0;
    let Vi = V.clone();

    let mut Rmin = vec![0;N];
    let mut Rmax = vec![0;N];
    Rmin[N-1] = 1000;
    Rmax[N-1] = 0;
    for i in (0..N-1).rev(){
        Rmin[i] = min(Rmin[i+1],V[i+1]);
        Rmax[i] = max(Rmax[i+1],V[i+1]);
    }

    for (i,&Vi) in Vi.iter().enumerate(){
        for j in i+1..N{
            let Vj = V[j];
            T = 0;
            if i != 0{ // Lmin,Lmax
                if Vi > Vj{
                    if Vi > Lmin{
                        T = max(T,Vi);
                    }
                }else{
                    if Vi < Lmax{
                        T = max(T,max(Lmax,Vj));
                    }
                }
            }


            for k in i+1..j{
                if V[k] > Vi && V[k] > Vj{// 凸
                    T = max(T,V[k]); continue;
                }
                if V[k] < Vi && V[k] < Vj{// 凹
                    T = max(T,max(Vi,Vj)); break;
                }
            }


            if j != N-1{ // Rmin,Rmax
                if Vj > Vi{
                    if Vj > Rmin[j]{
                        T = max(T,Vj);
                    }
                }else{
                    if Vj < Rmax[j]{
                        T = max(T,max(Rmax[j],Vi));
                    }
                }
            }
            ret += T;
        }
        Lmax = max(Lmax,V[i]);
        Lmin = min(Lmin,V[i]);
    }
    return ret;
}
fn main() {
    input!(N:usize,M:usize,E:[[usize;N];M]);
    let N: usize = N;
    let M: usize = M;

    let mut E: Vec<Vec<usize>> = E;
    for i in 0..M { E[i].push(i); }

    let Ans = Arc::new(Mutex::new(vec![0; M]));
    {
        for V in E.into_iter() {
            let Ans = Ans.clone();
            std::thread::spawn(move || {
                let &idx = V.last().unwrap();
                let ret = calc(N, V);
                loop {
                    let mut Ans = Ans.lock().unwrap();
                    if Ans[idx] == 0 {
                        Ans[idx] = ret;
                        break;
                    }
                }
            });
        }
    }

    std::thread::sleep_ms(1994);
    let mut Ans = Ans.lock().unwrap();
    let &maxv = (*Ans).iter().max().unwrap();
    for i in 0..M{
        if maxv == Ans[i]{
            println!("{}",i);
            break;
        }
    }
//    loop{
//        let mut Ans = Ans.lock().unwrap();
//        let mut ok = true;
////        for i in 0..M{
////            if Ans[i] >= 0{continue;}
////            else {ok = false;}
////        }
//        if ok{
//            //  println!("{:?}",*Ans);
//            let &maxv = (*Ans).iter().max().unwrap();
//            for i in 0..M{
//                if maxv == Ans[i]{
//                    println!("{}",i);
//                    break;
//                }
//            }
//            break;
//        }
//    }
}