#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main(){
	ll t,a,b;
	cin >> t >> a >> b;
	if((t < a or t < b) or (a == 0 and b == 0 and t == 1) ){
		cout << "NO" << endl;
		return 0;
	}
	cout << "YES" << endl;
	while(max(a,b) != 0){
		if(a != 0){
			cout << ">";
			a--;
		}
		if(b != 0){
			cout << "^";
			b--;
		}
		cout << endl;
		t--;
	}
	while(t != 0){
		if(t % 2 == 0){
			cout << ">" << endl;
			cout << "<" << endl;
			t -= 2;
		}else if(t % 2 == 1){
			cout << ">^" << endl;
			cout << "<" << endl;
			cout << "v" << endl;
		t -= 3;
		}
	}
	return 0;
}