#define _USE_MATH_DEFINES
#include <cstdio>
#include <iostream>
#include <sstream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <complex>
#include <string>
#include <vector>
#include <list>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <bitset>
#include <numeric>
#include <limits>
#include <climits>
#include <cfloat>
#include <functional>
using namespace std;

int main()
{
    int t, a, b;
    cin >> t >> a >> b;
    if(t < a || t < b){
        cout << "NO" << endl;
        return 0;
    }

    vector<string> s(t);
    for(int i=0; i<a; ++i){
        s[i] += '^';
    }
    for(int i=a; i<t-1; i+=2){
        s[i] += 'v';
        s[i+1] += '^';
    }
    for(int i=0; i<b; ++i){
        s[t-1-i] += '>';
    }
    for(int i=b; i<t-1; i+=2){
        s[t-1-i] += '<';
        s[t-2-i] += '>';
    }

    if(s[0] == ""){
        cout << "NO" << endl;
        return 0;
    }

    cout << "YES" << endl;
    for(int i=0; i<t; ++i)
        cout << s[i] << endl;
    return 0;
}