#include<cstdio>
#include<iostream>
#include<algorithm>
#include<string>
#include<queue>
#include<vector>
#include<functional>
#include<cmath>
#include<map>
#include<stack>
#include<set>
#include<numeric>
#include<limits>

#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()

using namespace std;
typedef long long ll;
typedef pair<int, int> pi;
typedef pair<ll, ll> pl;
typedef pair<ll, string> pls;

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

	if (t < max(a,b) || t+a+b == 1) {
		cout << "NO" << endl;
	}
	else {
		cout << "YES" << endl;
		while(t) {
			if (a < t - 1) { putchar('<'); a++; }
			else if (a != 0) { putchar('>'); a--; }
			if (b % 2 == t % 2) {
				if (b < t - 1) { putchar('v'); b++; }
				else if (b != 0) { putchar('^'); b--; }
			}
			putchar('\n');
			t--;
		}
	}
	return	0;
}