#include <algorithm>
#include <array>
#include <cstdio>
#include <cstdlib>
#include <cctype>
#include<complex>
#include <cmath>
#include <iostream>
#include <fstream>
#include <queue>
#include <list>
#include <map>
#include <numeric>
#include <set>
#include <sstream>
#include <string>
#include <vector>
#include <string>
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 comp(const void* a, const void* b)
{
    return *(int*)b - *(int*)a;
}

int hoge[1000][2];
int score[1000];
int main()
{
    int t,a,b;
    cin >> t >> a >> b;
    int remain_t = t - min(a,b);
    int remain_a = a - min(a,b);
    int remain_b = b - min(a,b);
    if (remain_t < 0)
    {
        cout << "NO" << endl;
    }
    else
    {
        if (remain_a == 0)
        {
            if (remain_t - remain_b < 0)
            {
                cout << "NO" <<endl;
                return 0;
            }
            cout << "YES" << endl;
            if ((remain_t - remain_b) % 2 != 0)
            {
                cout << "^\n>" << endl; 
            }
            else
            {
               cout << "^>" << endl;
            }
            rep(i,min(a,b)-1)
                cout << "^>" << endl;
            rep(i,remain_b)
                cout << ">" << endl;
            rep(i,(remain_t - remain_b)/2)
            {
                cout << ">" << endl;
                cout << "<" << endl;
            }
        }
        else
        {
            if (remain_t - remain_a < 0)
            {
                cout << "NO" <<endl;
                return 0;
            }
            cout << "YES" << endl;
            if ((remain_t - remain_a) % 2 != 0)
            {
                cout << "^\n>" << endl; 
            }
            else
            {
                cout << "^>" << endl;
            }
            rep(i,min(a,b))
                cout << "^>" << endl;
            rep(i,remain_a)
                cout << "^" << endl;
            rep(i,(remain_t - remain_a)/2)
            {
                cout << ">" << endl;
                cout << "<" << endl;
            }
        }
    }
    return 0;

}