#include<iostream>
#include<algorithm>

int main() {
	int time, up, right;
	std::cin >> time >> up >> right;

	if (time < std::max(up, right) || (time == 1 && up == 0 && right == 0)) {
		std::cout << "NO" << std::endl;
		return 0;
	}
	std::cout << "YES" << std::endl;

	if (std::max(up, right) != time) {
		up++;
		right++;
		time--;
		std::cout << "<v" << std::endl;
	}

	//ゴールの左下に移動
	int min = std::min(up, right) - 1;
	for (int i = 0; i < min; i++) {
		std::cout << "^>" << std::endl;
		up--;
		right--;
		time--;
	}
	
	while (up > 1) {
		std::cout << "^" << std::endl;
		up--;
		time--;
	}
	while (right > 1) {
		std::cout << ">" << std::endl;
		right--;
		time--;
	}

	//この時点で目標地点の左下にいる

	while(time > 2){
		std::cout << "<" << std::endl;
		std::cout << ">" << std::endl;
		time -= 2;
	}

	if (up == 0) {
		if(time == 1){
			std::cout << ">" << std::endl;
		} else {
			std::cout << ">^" << std::endl;
			std::cout << "v" << std::endl;
		}
	} else if (right == 0) {
		if (time == 1) {
			std::cout << "^" << std::endl;
		} else {
			std::cout << ">^" << std::endl;
			std::cout << "<" << std::endl;
		}
	}else{
		if(time == 2){
			std::cout << ">" << std::endl;
			std::cout << "^" << std::endl;
		} else {
			std::cout << "^>" << std::endl;
		}
	}
	return 0;
}