Example

Input

7
>>


Output

7
#include <cstdio>
#include <iostream>
#include <string>
#include <sstream>
#include <stack>
#include <algorithm>
#include <cmath>
#include <queue>
#include <map>
#include <set>
#include <cstdlib>
#include <bitset>
#include <tuple>
#include <assert.h>
#include <deque>
#include <bitset>
#include <iomanip>
#include <limits>
#include <chrono>
#include <random>
#include <array>
#include <unordered_map>
#include <functional>
#include <complex>
#include <numeric>
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }

constexpr long long MAX = 5100000;
constexpr long long INF = 1LL << 60;
constexpr int inf = 1 << 28;
//constexpr long long mod = 1000000007LL;
//constexpr long long mod = 998244353LL;

using namespace std;
typedef unsigned long long ull;
typedef long long ll;


int main()
{
	/*
	cin.tie(nullptr);
	ios::sync_with_stdio(false);
	*/

	int kkt; scanf("%d", &kkt);
	string s; cin >> s;
	int left = kkt;
	int right = -1;
	for (int i = 0; i < kkt; i++) {
		if (s[i] == '>') chmin(left, i);
		else if(s[i] == '<') chmax(right, i);
	}
	int res = 0;
	if (left != -1) chmax(res, kkt - left);
	if (right != kkt) chmax(res, right + 1);
	cout << res << endl;
	return 0;
}
