# include "bits/stdc++.h"
using namespace std;
using LL = long long;
using ULL = unsigned long long;
const double PI = acos(-1);
template<class T>constexpr T INF() { return ::std::numeric_limits<T>::max(); }
template<class T>constexpr T HINF() { return INF<T>() / 2; }
template <typename T_char>T_char TL(T_char cX) { return tolower(cX); };
template <typename T_char>T_char TU(T_char cX) { return toupper(cX); };
typedef pair<LL, LL> pii;
const int vy[] = { -1, -1, -1, 0, 1, 1, 1, 0 }, vx[] = { -1, 0, 1, 1, 1, 0, -1, -1 };
const int dx[4] = { 0,1,0,-1 }, dy[4] = { 1,0,-1,0 };
int popcnt(unsigned long long n) { int cnt = 0; for (int i = 0; i < 64; i++)if ((n >> i) & 1)cnt++; return cnt; }
int d_sum(LL n) { int ret = 0; while (n > 0) { ret += n % 10; n /= 10; }return ret; }
int d_cnt(LL n) { int ret = 0; while (n > 0) { ret++; n /= 10; }return ret; }
LL gcd(LL a, LL b) { if (b == 0)return a; return gcd(b, a%b); };
LL lcm(LL a, LL b) { LL g = gcd(a, b); return a / g*b; };
# define ALL(qpqpq)           (qpqpq).begin(),(qpqpq).end()
# define UNIQUE(wpwpw)        sort(ALL((wpwpw)));(wpwpw).erase(unique(ALL((wpwpw))),(wpwpw).end())
# define LOWER(epepe)         transform(ALL((epepe)),(epepe).begin(),TL<char>)
# define UPPER(rprpr)         transform(ALL((rprpr)),(rprpr).begin(),TU<char>)
# define FOR(i,tptpt,ypypy)   for(LL i=(tptpt);i<(ypypy);i++)
# define REP(i,upupu)         FOR(i,0,upupu)
# define INIT                 std::ios::sync_with_stdio(false);std::cin.tie(0)

int n, m;
vector<int> e;
vector<pair<double, int>> v;

struct SegmentTree {
private:
    int n;
    vector<int> node;
public:
    SegmentTree(vector<int> v) {
        int sz = v.size();
        n = 1; while(n < sz) n *= 2;
        node.resize(2*n-1, -HINF<int>());
        for(int i=0; i<sz; i++) node[i+n-1] = v[i];
        for(int i=n-2; i>=0; i--) node[i] = max(node[2*i+1], node[2*i+2]);
    }
    //[a,b)の最大値を求める
    int getmax(int a, int b, int k=0, int l=0, int r=-1) {
        if(r < 0) r = n;
        if(r <= a || b <= l) return -HINF<int>();
        if(a <= l && r <= b) return node[k];

        int vl = getmax(a, b, 2*k+1, l, (l+r)/2);
        int vr = getmax(a, b, 2*k+2, (l+r)/2, r);
        return max(vl, vr);
    }
};

struct SegmentTree2 {
private:
    int n;
    vector<int> node;
public:
    SegmentTree2(vector<int> v) {
        int sz = v.size();
        n = 1; while(n < sz) n *= 2;
        node.resize(2*n-1, -HINF<int>());
        for(int i=0; i<sz; i++) node[i+n-1] = v[i];
        for(int i=n-2; i>=0; i--) node[i] = min(node[2*i+1], node[2*i+2]);
    }
    //[a,b)の最小値を求める
    int getmin(int a, int b, int k=0, int l=0, int r=-1) {
        if(r < 0) r = n;
        if(r <= a || b <= l) return -HINF<int>();
        if(a <= l && r <= b) return node[k];

        int vl = getmin(a, b, 2*k+1, l, (l+r)/2);
        int vr = getmin(a, b, 2*k+2, (l+r)/2, r);
        return min(vl, vr);
    }
};

bool kado(int a, int b, int c){
    if(a == b || a == c || b == c)return false;
    int mid = a + b + c - max({a, b, c}) - min({a, b, c});
    if(mid == a || mid == c)return true;
    return false;
}

void solve(int idx){
    double sum = 0.0;
    e.resize(n);
    REP(i, n)cin >> e[i];
    SegmentTree seg(e);
    SegmentTree2 seg2(e);
    double cnt = 0;
    REP(i, n)for(int j = i + 2;j < n;j++){
        int maxl = 0;
        int xmax = seg.getmax(0, i);
        int xmin = seg2.getmin(0, i);
        int ymax = seg.getmax(i + 1, j);
        int ymin = seg2.getmin(i + 1, j);
        int zmax = seg.getmax(j + 1, n);
        int zmin = seg2.getmin(j + 1, n);

        if(e[i] < e[j]){
            maxl = max({(xmax > e[i] && i != 0 ? max(xmax, e[j]) : 0), max((ymax > e[j] ? max(ymax, e[j]) : 0), (ymin < e[i] ? max(ymin, e[j]) : 0)), (zmin < e[j] && j != n - 1 ? max(zmin, e[j]) : 0)});
        }else{
            maxl = max({(xmin < e[i] && i != 0 ? max(xmin, e[i]) : 0), max((ymax > e[i] ? max(ymax, e[i]) : 0), (ymin < e[j] ? max(ymin, e[i]) : 0)), (zmax < e[j] && j != n - 1 ?  max(zmax, e[i]) : 0)});
        }
        sum += maxl;
        cnt += 1.0;
    }
    v.emplace_back(make_pair(sum/cnt, -idx));
}

int main(){
    INIT;
    cin >> n >> m;
    REP(i, m){
        solve(i);
    }
    sort(ALL(v));
    reverse(ALL(v));
    cout << -v[0].second << endl;
}