#include<bits/stdc++.h>
using namespace std;
using ll = long long;

template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }

#define FOR(i,a,b) for(ll i=(a);i<(b);++i)
#define ALL(v) (v).begin(), (v).end()
#define p(s) cout<<(s)<<endl
#define p2(s, t) cout << (s) << " " << (t) << endl
#define br() p("")
#define pn(s) cout << (#s) << " " << (s) << endl
#define p_yes() p("YES")
#define p_no() p("NO")

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);

    // input
    ll T, A, B;
    cin >> T >> A >> B;

    ll dist = max(A, B);
    // たどり着けない
    if(T<dist){
        p_no();
        return 0;
    }
    else if(T==1 && A==0 && B==0){
        p_no();
        return 0;
    }
    else{
        p_yes();
    }
    
    ll x = 0;
    ll y = 0;

    ll diff = (T-dist)%2;
    if(diff==1){
        // 1歩、無駄に消費したい
        if(A>B){
            p(">");
            x++;
        }else{
            p("^");
            y++;
        }
        T--;
    }

    // 貪欲に近づく
    while(T--){
        ll dx = B-x;
        ll dy = A-y;

        if(dx==0 && dy==0){
            p("<v");
            x--;
            y--;
        }else{
            string command = "";
            
            if(dx>0){
                command += ">";
                x++;
            }else if(dx<0){
                command += "<";
                x--;
            }

            if(dy>0){
                command += "^";
                y++;
            }else if(dy<0){
                command += "v";
                y--;
            }

            p(command);
        }
    }
    
    return 0;
}