#include "bits/stdc++.h"
using namespace std;

#define DEBUG(x) cout<<#x<<": "<<x<<endl;
#define DEBUG_VEC(v) cout<<#v<<":";for(int i=0;i<v.size();i++) cout<<" "<<v[i]; cout<<endl

typedef long long ll;
#define vi vector<int>
#define vl vector<ll>
#define vii vector< vector<int> >
#define vll vector< vector<ll> >
#define vs vector<string>
#define pii pair<int,int>
#define pis pair<int,string>
#define psi pair<string,int>
const int inf = 1000000001;
const ll INF = 1e16;
#define MOD 1000000007
#define mod 1000000009
#define pi 3.14159265358979323846
#define Sp(p) cout<<setprecision(15)<<fixed<<p<<endl;
int dx[4] = { 1,0,-1,0 }, dy[4] = { 0,1,0,-1 };
int dx2[8] = { 1,1,0,-1,-1,-1,0,1 }, dy2[8] = { 0,1,1,1,0,-1,-1,-1 };

int main() {
	int t, a, b, i, j;
	cin >> t >> a >> b;
	if (a > t || b > t) {
		cout << "NO" << endl;
		return 0;
	}
	cout << "YES" << endl;
	int t2 = 0;
	int x = 0, y = 0;
	while (x < a - 1 && y < b - 1) {
		cout << "^>" << endl;
		x++; y++; t2++;
	}
	if (a > b) {
		while (x < a - 1) {
			cout << ">" << endl;
			x++; t2++;
		}
	}
	else if (b > a) {
		while (y < b - 1) {
			cout << "^" << endl;
			y++; t2++;
		}
	}
	bool now = false;
	while (t2 < t - 1) {
		if (!now) {
			cout << "^" << endl;
		}
		else {
			cout << "v" << endl;
		}
		t2++;
		now = !now;
	}
	if (now) {
		cout << ">" << endl;
		return 0;
	}
	else {
		cout << "^>" << endl;
		return 0;
	}
}