#include <iostream>
#include <algorithm>

using namespace std;

#define REP(i,a,b) for(int i=a;i<(int)b;i++)
#define rep(i,n) REP(i,0,n)

int main() {

  int T, A, B; cin >> T >> A >> B;
  int M = max(A,B);
  if(M>T) { cout << "NO\n"; return 0; }
  cout << "YES\n";
  int ur = min(A,B);
  rep(i, ur) cout << ">^\n";
  T -= ur;
  if(T == 0) { return 0; }
  if(A < B) {
    rep(i,B-ur-1) cout << ">\n";
    T-=B-ur-1;
    if(T%2==0) { cout << "^\n>v\n"; T-=2; }
    else { cout << ">\n"; T--; }
    rep(i,T/2)cout << ">\n";
    rep(i,T/2)cout << "<\n";
  }
  else {
    swap(A,B);
    rep(i,B-ur-1) cout << "^\n";
    T-=B-ur-1;
    if(T%2==0) { cout << ">\n^<\n"; T-=2; }
    else { cout << "^\n"; T--; }
    rep(i,T/2)cout << "^\n";
    rep(i,T/2)cout << "v\n";
  }

  return 0;
}