import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.Scanner;
import java.util.Set;
import java.util.TreeSet;

public class Main {

	public static final int EXP = 3000000;

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		final int T = sc.nextInt();
		final int A = sc.nextInt();
		final int B = sc.nextInt();
		
		final int minimum_cost = Math.max(A, B);
		final int use_cost = T - minimum_cost;
		final int min_range = Math.min(A, B);
		
		if(T < minimum_cost){
			System.out.println("NO");
			return;
		}else if(A == 0 && B == 0 && use_cost < 3 && (T % 2) != (minimum_cost % 2)){
			System.out.println("NO");
			return;
		}else if(use_cost == 0 && (T % 2) != (minimum_cost % 2)){
			System.out.println("NO");
			return;
		}
		
		System.out.println("YES");
		
		int limit = min_range, cnt = 0;
		if((minimum_cost % 2) != (T % 2)){
			if(A == 0 && B == 0){
				System.out.println(">^");
				System.out.println("v");
				System.out.println("<");
				cnt += 3;
			}else if(A == 0 || B == 0){
				System.out.println(">^");
				limit--;
				cnt++;
			}else{
				System.out.println(">");
				System.out.println("^");
				limit--;
				cnt += 2;
			}
		}
		
		for(int i = 0; i < limit; i++){
			System.out.println(">^");
			cnt++;
		}
		
		for(int x = min_range + (limit < 0 ? -limit : 0); x < B; x++){
			System.out.println(">");
			cnt++;
		}
		for(int y = min_range + (limit < 0 ? -limit : 0); y < A; y++){
			System.out.println("^");
			cnt++;
		}
		
		if(limit < 0){
			if(A == 0){
				System.out.println("v");
			}else if(B == 0){
				System.out.println("<");
			}else{
				System.out.println("<v");
			}
			cnt++;
		}
		
		for(int i = cnt; i < T; i += 2){
			System.out.println("^");
			System.out.println("v");
		}
		
		
	}
}