using System;

namespace darkest
{
    class Program
    {
        static int[,] pixels = new int[,] {
            { 1,2,3,4 },
            { 2,3,5,7 },
            { 4,7,9,9 },
            { 9,5,3,2 }
        };

        static void Main(string[] args)
        {
            process(pixels);
        }

        private static void process(int[,] pixels)
        {
            int w = pixels.GetLength(0);
            int h = pixels.GetLength(1);
            int[,] darkestNearby = new int[w, h];
            char[,] result = new char[w, h];

            for (int y = 0; y < h; y++)
            {
                int a = pixels[y, 0];
                for (int x = 0; x < w - 1; x++)
                {
                    int b = pixels[y, x + 1];

                    if (a < b)
                    {
                        darkestNearby[y, x] = b;
                        result[y, x] = '>';
                    }
                    else if (a > b)
                    {
                        darkestNearby[y, x + 1] = a;
                        result[y, x + 1] = '<';
                    }

                    a = b;
                }
            }

            for (int x = 0; x < w; x++)
            {
                int a = pixels[0, x];
                for (int y = 0; y < h - 1; y++)
                {
                    int b = pixels[y + 1, x];

                    if (a < b)
                    {
                        if (darkestNearby[y, x] < b)
                        {
                            result[y, x] = 'v';
                        }
                    }
                    else if (a > b)
                    {
                        if (darkestNearby[y + 1, x] < a)
                        {
                            result[y + 1, x] = '^';
                        }
                    }

                    a = b;
                }
            }

            for (int x = 0; x < w; x++)
            {
                for (int y = 0; y < h; y++)
                {
                    char c = result[x, y];
                    Console.Write(c == '\0' ? 'o' : c);
                }

                Console.WriteLine();
            }
        }
    }
}