#include <algorithm>
#include <cstdio>
#include <cstdlib>
#include <cctype>
#include <cmath>
#include <iostream>
#include <queue>
#include <list>
#include <map>
#include <numeric>
#include <set>
#include <sstream>
#include <string>
#include <vector>
using namespace std;
#define REP(i,a,n) for(int i=(a); i<(int)(n); i++)
#define rep(i,n) REP(i,0,n)
#define FOR(it,c) for(__typeof((c).begin()) it=(c).begin(); it!=(c).end(); ++it)
#define ALLOF(c) (c).begin(), (c).end()
typedef long long ll;


int main(){
  int T, A, B;
  cin >> T >> A >> B;

  if(!(A<=T && B<=T)){
    cout << "NO" << endl;
    return 0;
  }
  int remain = T - min(A, B);
  if(remain == 1){
    cout << "NO" << endl;
    return 0;
  }

  cout << "YES" << endl;
  while(remain>0){
    if(remain%2==1){
      remain -= 3;
      cout << "^" << endl;
      cout << ">" << endl;
      cout << "<v" << endl;
    }else{
      remain -= 2;
      cout << "^" << endl;
      cout << "v" << endl;
    }
  }

  int x=0, y=0;
  while(true){
    if(y==A && x==B) break;

    if(y == A){
      x++;
      cout << ">" << endl;
    }
    else if(x == B){
      y++;
      cout << "^" << endl;
    }else{
      x++;
      y++;
      cout << "^>" << endl;
    }
  }



  return 0;
}