using System;
using System.Collections.Generic;
using System.Text;
using System.Linq;

class Program
{
    public void Proc()
    {
        Reader.IsDebug = false;
        int[] inpt = Reader.ReadLine().Split(' ').ToList().Select(a => int.Parse(a)).ToArray();
        int goalTurn = inpt[0];
        int up = inpt[1];
        int right = inpt[2];

        if (goalTurn < Math.Max(up, right))
        {
            Console.WriteLine("NO");
            return;
        }
        List<String> moveList = new List<string>();
        if (up > 0 && right > 0)
        {
            for (int i = 0; i < Math.Min(up, right); i++)
            {
                moveList.Add("^>");
            }
        }
        if (up > right)
        {
            for (int i = 0; i < up - right; i++)
            {
                moveList.Add("^");
            }
        }
        if (right > up)
        {
            for (int i = 0; i < right - up; i++)
            {
                moveList.Add(">");
            }
        }
        if (goalTurn > moveList.Count)
        {
            while (goalTurn - moveList.Count >= 2)
            {
                if (moveList.Contains(">"))
                {
                    moveList.Add(">");
                    moveList.Add("<");
                }
                else
                {
                    moveList.Add("^");
                    moveList.Add("v");
                }
            }
        }
        moveList.Sort();
        if (goalTurn > moveList.Count)
        {
            if (moveList.Contains("^>"))
            {
                int idx = moveList.IndexOf("^>");
                moveList.RemoveAt(idx);
                moveList.Add("^");
                moveList.Add(">");
            }
            else if (moveList.Contains("^"))
            {
                int idx = moveList.IndexOf("^");
                moveList.RemoveAt(idx);
                moveList.Add("^>");
                moveList.Add("<");

            }
            else if (moveList.Contains(">"))
            {
                int idx = moveList.IndexOf(">");
                moveList.RemoveAt(idx);
                moveList.Add("^>");
                moveList.Add("v");
            }
            else
            {
                Console.WriteLine("NO");
                return;
            }
        }
        Console.WriteLine("YES");
        moveList.ForEach(a => Console.WriteLine(a));
    }



    public class Reader
    {
        public static bool IsDebug = true;
        private static String PlainInput = @"


3 1 4




 
";
        private static System.IO.StringReader Sr = null;
        public static string ReadLine()
        {
            if (IsDebug)
            {
                if (Sr == null)
                {
                    Sr = new System.IO.StringReader(PlainInput.Trim());
                }
                return Sr.ReadLine();
            }
            else
            {
                return Console.ReadLine();
            }
        }
        public static int[] GetInt(char delimiter = ' ', bool trim = false)
        {
            string inptStr = ReadLine();
            if (trim)
            {
                inptStr = inptStr.Trim();
            }
            string[] inpt = inptStr.Split(delimiter);
            int[] ret = new int[inpt.Length];
            for (int i = 0; i < inpt.Length; i++)
            {
                ret[i] = int.Parse(inpt[i]);
            }
            return ret;
        }
    }
    static void Main()
    {
        Program prg = new Program();
        prg.Proc();
    }
}