#include <iostream>
#include <cstring>
#include <algorithm>
#define REP(i,a,b) for(i=a;i<b;i++)
#define rep(i,n) REP(i,0,n)

using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
/* ここからが本編 */
/* */
/* 入力開始！ */
/* 入力終了！ */
int main(void)
{
  int i,j,k,l;
  int n;
  int t,a,b;
  cin >> t >> a >> b;
  if(t < max(a,b)) cout << "NO" << endl;
  else if(t == 1 && a == 0 && b == 0) cout << "NO" << endl;
  else {
	cout << "YES" << endl;
	if(t-1 == max(a,b)) {
	  if(a == 0) {
		cout << ">\n^<" << endl;
		b--; 
		t -= 2;
	  }
	  else if(b == 0) {
		cout << "^\nv>" << endl;
		a--; 
		t -= 2;
	  }
	  else {
		cout << "^" << endl;
		cout << ">" << endl;
		a--; b--; 
		t -= 2;
	  }
	}
	for(;t-max(a,b);) {
	  cout << "^" << endl;
	  cout << "v" << endl;
	  t -= 2;
	}
	for(;min(a,b);) {
	  cout << "^>" << endl;
	  a--; b--;
	}
	if(a == 0) {
	  for(;b;b--) cout << "^" << endl;
	}
	else{
	  for(;a;a--) cout << ">" << endl;
	}
  }	
  return 0;
}