#include<iostream>
#include<string>

using namespace std;

#define TMAX 10000

int main(){

	int T,A,B;
	string AB[TMAX];

	cin>>T>>A>>B;

	for(int i=0;i<T;i++){
		AB[i]="";
		
		if(A==0&&B==0){
			if(T-i==3){
				AB[i++]="<^";
				AB[i++]=">";
				AB[i++]="v";
			}
			else AB[i]+='<',B--;
		}
		else{
			if(A>0) AB[i]+='^',A--;
			else AB[i]+='v',A++;
			if(B>0) AB[i]+='>',B--;
			else AB[i]+='<',B++;
		}
	}

	if(A==0&&B==0){
		cout<<"YES"<<endl;
		for(int i=0;i<T;i++){
			cout<<AB[i]<<endl;
		}
	}
	else cout<<"NO"<<endl;

}