/* -*- coding: utf-8 -*-
 *
 * 232.cc: No.232 めぐるはめぐる (2) - yukicoder
 */

#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<set>
#include<stack>
#include<list>
#include<queue>
#include<deque>
#include<algorithm>
#include<numeric>
#include<utility>
#include<complex>
#include<functional>
 
using namespace std;

/* constant */

/* typedef */

/* global variables */

/* subroutines */

/* main */

int main() {
  int t, a, b;
  cin >> t >> a >> b;

  int m = max(a, b);
  if (t < m || (m == 0 && t == 1)) {
    puts("NO");
    return 0;
  }

  puts("YES");
  if (m == 0) {
    if (t & 1) {
      printf(">^\nv\n<\n");
      t -= 3;
    }
  }
  else if ((t + m) & 1) {
    while (m > 1) {
      if (a > 0) putchar('>'), a--;
      if (b > 0) putchar('^'), b--;
      putchar('\n');
      m--, t--;
    }

    if (a > 0 && b > 0) printf(">\n^\n");
    else if (a > 0) printf(">^\nv\n");
    else printf(">^\n<\n");
    t -= 2;
  }
  else {
    while (m > 0) {
      if (a > 0) putchar('>'), a--;
      if (b > 0) putchar('^'), b--;
      putchar('\n');
      m--, t--;
    }
  }
  for (int i = 0; i < t; i += 2) printf(">\n<\n");

  return 0;
}