import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.*; public class Main { void solve() throws IOException { int t = ni(), a = ni(), b = ni(); if (t == 1 && a == 1 && b == 1) { out.println("NO"); return; } if (Math.max(a, b) > t) { out.println("NO"); return; } out.println("YES"); boolean flg1 = t % 2 != a % 2; boolean flg2 = t % 2 != b % 2; for (int i = 0; i < t; i++) { if (flg1 && i == 0) { } else if (i < (t + a) / 2 + (flg1 ? 1 : 0)) { out.print('>'); } else { out.print('<'); } if (flg2 && i == t - 1) { } else if (i < (t + b) / 2) { out.print('^'); } else { out.print('v'); } out.println(); } } String ns() throws IOException { while (!tok.hasMoreTokens()) { tok = new StringTokenizer(in.readLine(), " "); } return tok.nextToken(); } int ni() throws IOException { return Integer.parseInt(ns()); } long nl() throws IOException { return Long.parseLong(ns()); } double nd() throws IOException { return Double.parseDouble(ns()); } String[] nsa(int n) throws IOException { String[] res = new String[n]; for (int i = 0; i < n; i++) { res[i] = ns(); } return res; } int[] nia(int n) throws IOException { int[] res = new int[n]; for (int i = 0; i < n; i++) { res[i] = ni(); } return res; } long[] nla(int n) throws IOException { long[] res = new long[n]; for (int i = 0; i < n; i++) { res[i] = nl(); } return res; } static BufferedReader in; static PrintWriter out; static StringTokenizer tok; public static void main(String[] args) throws IOException { in = new BufferedReader(new InputStreamReader(System.in)); out = new PrintWriter(System.out); tok = new StringTokenizer(""); Main main = new Main(); main.solve(); out.close(); } }