#include <iostream>
using namespace std;

int main(){
   int t,a,b;
   cin >> t >> a >> b;
   if(max(a,b) > t || t == 1 && a == 0 && b == 0) cout << "NO" << endl;
   else{
      cout << "YES" << endl;
      while(t){
         if(t == a){
            for(int i = 0;i < b;i++) cout << "^>" << endl;
            for(int i = 0;i < a - b;i++) cout << '^' << endl;
            return 0;
         }else if(t == b){
            for(int i = 0;i < a;i++) cout << "^>" << endl;
            for(int i = 0;i < b - a;i++) cout << '>' << endl;
            return 0;
         }else if(t - a == 1 && t - b == 1){
            cout << '>' << endl;
            t--; b--;
         }else if(t - a == 1 && t - b > 1){
            cout << '<' << endl;
            t--; b++;
         }else{
            cout << 'v' << endl;
            t--; a++;
         }
      }
   }
}