using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Text;
using System.Text.RegularExpressions;
using System.Linq;
using System.IO;

class Program
{ 
    static void Main(string[]args)
    {
        Magatro m = new Magatro();
        m.Scan();
        m.Solve();
    }
}

public class Scanner
{
    private StreamReader Sr;
    private string[] S;
    private int Index;

    private const char Separator=' ';

    public Scanner()
    {
        Index = 0;
        S = new string[0];
        Sr = new StreamReader(Console.OpenStandardInput());
    }

    private string[] Line()
    {
        return Sr.ReadLine().Split(Separator);
    }

    public string Next()
    {
        string result;
        if (Index >= S.Length)
        {
            S = Line();
            Index = 0;
        }
        result = S[Index];
        Index++;
        return result;
    }
    public int NextInt()
    {
        return int.Parse(Next());
    }
    public double NextDouble()
    {
        return double.Parse(Next());
    }
    public long NextLong()
    {
        return long.Parse(Next());
    }
    public bool ScanToEnd(ref string s)
    {
        if (Sr.EndOfStream)
        {
            return false;
        }
        else
        {
            s = Sr.ReadLine();
            return true;
        }
    }
}

public class Magatro
{
    private int T, A, B;

    public void Scan()
    {
        Scanner sc = new Scanner();
        T = sc.NextInt();
        A = sc.NextInt();
        B = sc.NextInt();
    }

    public void Solve()
    {
        if (T < A | T < B || T + A + B==1)
        {
            Console.WriteLine("NO");
            return;
        }
        while (T > 0)
        {
            if (B < T - 1)
            {
                Console.Write("<");
                B++;
            }
            else if (B != 0)
            {
                Console.Write(">");
                B--;
            }
            if (A % 2 == T % 2)
            {
                if (A < T - 1)
                {
                    Console.Write("v");
                    A++;
                }
                else if (A != 0)
                {
                    Console.Write("^");
                    A--;
                }
            }
            Console.WriteLine();
            T--;
        }
    }

}