using System; using System.IO; using System.Linq; using System.Text; using System.Collections.Generic; using System.Diagnostics; using System.Numerics; using Enu = System.Linq.Enumerable; class Program { public void Solve() { int N = Reader.Int(), M = Reader.Int(); var table = Reader.IntTable(M); double maxEx = -1; int bestIndex = 0; for (int i = 0; i < M; i++) { int ex = 0; var seg = new MinMaxSegTree(N); var V = table[i]; for (int x = 0; x < N; x++) seg.Set(x, V[x]); for (int a = 0; a < N; a++) for (int b = a + 1; b < N; b++) { //int val = 0; //Action Check = (x, y, z) => //{ // int max = Math.Max(x, Math.Max(y, z)); // if (max == y) { CheckMax(ref val, max); return; } // int min = Math.Min(x, Math.Min(y, z)); // if (min == y) CheckMax(ref val, max); //}; //if (a > 0) //{ // Check(seg.Min(0, a), V[a], V[b]); // Check(seg.Max(0, a), V[a], V[b]); //} //if (a + 1 < b) //{ // Check(V[a], seg.Min(a + 1, b), V[b]); // Check(V[a], seg.Max(a + 1, b), V[b]); //} //if (b + 1 < N) //{ // Check(V[a], V[b], seg.Min(b + 1, N)); // Check(V[a], V[b], seg.Max(b + 1, N)); //} //ex += val; if (V[a] < V[b]) { int val = 0; // c > a < b if (seg.Max(0, a) > V[a]) val = Math.Max(seg.Max(0, a), V[b]); // a > c < b if (seg.Min(a + 1, b) < V[a]) CheckMax(ref val, V[b]); // a < c > b if (seg.Max(a + 1, b) > V[b]) CheckMax(ref val, seg.Max(a + 1, b)); // a < b > c if (seg.Min(b + 1, N) < V[b]) CheckMax(ref val, V[b]); ex += val; } else { // a > b int val = 0; // c < a > b if (seg.Min(0, a) < V[a]) val = V[a]; // a > c < b if (seg.Min(a + 1, b) < V[b]) CheckMax(ref val, V[a]); // a < c > b if (seg.Max(a + 1, b) > V[a]) CheckMax(ref val, seg.Max(a + 1, b)); // a > b < c if (seg.Max(b + 1, N) > V[b]) CheckMax(ref val, Math.Max(V[a], seg.Max(b + 1, N))); ex += val; } } if (ex > maxEx) { maxEx = ex; bestIndex = i; } } Console.WriteLine(bestIndex); } static void CheckMax(ref int a, int b) { if (b > a) a = b; } class MinMaxSegTree { private static readonly int INF = (int)1e9; public readonly int N; private readonly int[] min, max; public MinMaxSegTree(int n) { for (N = 4; N < n; ) N *= 2; min = new int[N * 2]; max = new int[N * 2]; for (int i = 0; i < N; i++) { min[i] = INF; max[i] = -INF; } } public void Set(int index, int val) { index += N - 1; min[index] = val; max[index] = val; while (index > 0) { index = (index - 1) / 2; min[index] = Math.Min(min[index * 2 + 1], min[index * 2 + 2]); max[index] = Math.Max(max[index * 2 + 1], max[index * 2 + 2]); } } // [L, R) public int Min(int L, int R) { return MinRec(0, 0, N, L, R); } public int Max(int L, int R) { return MaxRec(0, 0, N, L, R); } private int MinRec(int index, int currL, int currR, int L, int R) { if (currL >= R || currR <= L) return INF; if (currL >= L && currR <= R) return min[index]; int mid = (currL + currR) / 2; int vl = MinRec(index * 2 + 1, currL, mid, L, R); int vr = MinRec(index * 2 + 2, mid, currR, L, R); return Math.Min(vl, vr); } private int MaxRec(int index, int currL, int currR, int L, int R) { if (currL >= R || currR <= L) return -INF; if (currL >= L && currR <= R) return max[index]; int mid = (currL + currR) / 2; int vl = MaxRec(index * 2 + 1, currL, mid, L, R); int vr = MaxRec(index * 2 + 2, mid, currR, L, R); return Math.Max(vl, vr); } } } class Entry { static void Main() { new Program().Solve(); } } class Reader { private static TextReader reader = Console.In; private static readonly char[] separator = { ' ' }; private static readonly StringSplitOptions op = StringSplitOptions.RemoveEmptyEntries; private static string[] A = new string[0]; private static int i; private static void Init() { A = new string[0]; } public static void Set(TextReader r) { reader = r; Init(); } public static void Set(string file) { reader = new StreamReader(file); Init(); } public static bool HasNext() { return CheckNext(); } public static string String() { return Next(); } public static int Int() { return int.Parse(Next()); } public static long Long() { return long.Parse(Next()); } public static double Double() { return double.Parse(Next()); } public static int[] IntLine() { return Array.ConvertAll(Split(Line()), int.Parse); } public static int[] IntArray(int N) { return Enu.Range(0, N).Select(i => Int()).ToArray(); } public static int[][] IntTable(int H) { return Enu.Range(0, H).Select(i => IntLine()).ToArray(); } public static string[] StringArray(int N) { return Enu.Range(0, N).Select(i => Next()).ToArray(); } public static string Line() { return reader.ReadLine().Trim(); } private static string[] Split(string s) { return s.Split(separator, op); } private static string Next() { CheckNext(); return A[i++]; } private static bool CheckNext() { if (i < A.Length) return true; string line = reader.ReadLine(); if (line == null) return false; if (line == "") return CheckNext(); A = Split(line); i = 0; return true; } }