#include <iostream>
using namespace std;
int main(){
	int t,a,b;	cin>>t>>a>>b;
	if(t>=a&&t>=b){
		cout<<"YES"<<endl;
		if(a==b){
			while(a>1&&b>1){
				cout<<">^"<<endl;
				a--;	b--;	t--;
			}
			if(t%2==0){
				cout<<">\n^\n";
				t-=2;
			}
			else{
				cout<<">^"<<endl;
				t--;
			}
		}
		else{
			while(a>0&&b>0){
				cout<<">^\n";
				a--;	b--;	t--;
			}
			if(a>0){
				while(a>1){
					cout<<">"<<endl;
					a--;	t--;
				}
				if(t%2==0){
					cout<<">^\nv\n";
					t-=2;
				}
				else{
					cout<<">"<<endl;
					t--;
				}
			}
			else if(b>0){
				while(b>1){
					cout<<"^"<<endl;
					a--;	t--;
				}
				if(t%2==0){
					cout<<">^\n<\n";
					t-=2;
				}
				else{
					cout<<"^"<<endl;
					t--;
				}
			}
		}
		while(t>0){
			cout<<">\n<\n";
			t--;
		}
	}
	else 	cout<<"NO"<<endl;
	return 0;
}