#include <iostream>
#include <algorithm>
using namespace  std;
int main(){
  int t,a,b;
  cin>>t>>a>>b;
  int m=min(a,b);
  int d=a+b-m;
  if(t-d<0){
    cout<<"NO"<<endl;;
  } else if(t-d==1){
    if(m==0){
      cout<<"NO"<<endl;;
    } else {
      cout<<"YES"<<endl;
      for(int i=0; i<m-1; ++i){
        cout<<"^>"<<endl;
      }
      cout<<"^"<<endl;
      cout<<">"<<endl;
    }
  } else {
    cout<<"YES"<<endl;
    for(int i=0; i<m; ++i){
      cout<<"^>"<<endl;
    }
    if(t-d==2){
      cout<<">"<<endl;
      cout<<"<"<<endl;
    }else if(t-d==3){
      cout<<"^>"<<endl;
      cout<<"v"<<endl;
      cout<<"<"<<endl;
    } else if(t-d==4){
      cout<<">"<<endl;
      cout<<"<"<<endl;
      cout<<">"<<endl;
      cout<<"<"<<endl;
    } else if(t-d>=5){
      int e=t-d;
      if(e%2==1){
        cout<<"^>"<<endl;
        cout<<"v"<<endl;
        cout<<"<"<<endl;
        e-=3;
        int f=e/2;
        for(int i=0; i<f; ++i){
          cout<<">"<<endl;
          cout<<"<"<<endl;
        }
      } else {
        for(int i=0; i<e; ++i){
          cout<<">"<<endl;
          cout<<"<"<<endl;
        }
      }
    }
  }
  return 0;
}