#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <iomanip>
#include <cmath>
#include <stdio.h>
#include <queue>
#include <deque>
#include <cstdio>
#include <set>
#include <map>
#include <bitset>
#include <stack>
#include <cctype>
using namespace std;
int main() {
	int t, a, b;
	cin >> t >> a >> b;
	if (max(a, b) > t) {
		cout << "NO" << endl;
		return 0;
	}
	cout << "YES" << endl;
	if (a == 0) {
		if (b % 2 != t % 2) {
			cout << "^" << endl;
			cout << "v>" << endl;
			for (int i = 0; i < b - 1; i++) {
				cout << ">" << endl;
			}
		}
		else {
			for (int i = 0; i < b; i++) {
				cout << ">" << endl;
			}
		}
		for (int i = 0; i < (t - b) / 2; i++) {
			cout << "^" << endl;
			cout << "v" << endl;
		}
		return 0;
	}
	if (b == 0) {
		if (a % 2 != t % 2) {
			cout << ">" << endl;
			cout << "^<" << endl;
			for (int i = 0; i < a - 1; i++) {
				cout << "^" << endl;
			}
		}
		else {
			for (int i = 0; i < a; i++) {
				cout << "^" << endl;
			}
		}
		for (int i = 0; i < (t - a) / 2; i++) {
			cout << "^" << endl;
			cout << "v" << endl;
		}
		return 0;
	}
	cout << "YES" << endl;
	if (a < b) {
		if (b % 2 != t % 2) {
			for (int i = 0; i < a - 1; i++) {
				cout << "^>" << endl;
			}
			cout << "^" << endl;
			for (int i = 0; i < b - a + 1; i++) {
				cout << ">" << endl;
			}
			for (int i = 0; i < (t - b) / 2; i++) {
				cout << "^" << endl;
				cout << "v" << endl;
			}
		}
		else {
			for (int i = 0; i < a; i++) {
				cout << "^>" << endl;
			}
			for (int i = 0; i < b - a; i++) {
				cout << ">" << endl;
			}
			for (int i = 0; i < (t - b) / 2; i++) {
				cout << "^" << endl;
				cout << "v" << endl;
			}
		}
	}
	else {
		if (a % 2 != t % 2) {
			for (int i = 0; i < b - 1; i++) {
				cout << "^>" << endl;
			}
			cout << ">" << endl;
			for (int i = 0; i < a - b + 1; i++) {
				cout << "^" << endl;
			}
			for (int i = 0; i < (t - a) / 2; i++) {
				cout << "^" << endl;
				cout << "v" << endl;
			}
		}
		else {
			for (int i = 0; i < b; i++) {
				cout << "^>" << endl;
			}
			for (int i = 0; i < a - b; i++) {
				cout << "^" << endl;
			}
			for (int i = 0; i < (t - a) / 2; i++) {
				cout << "^" << endl;
				cout << "v" << endl;
			}
		}
	}
}