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