#include <bits/stdc++.h>
#define ll long long
#define to_str(x) static_cast< std::ostringstream & >( \
        ( std::ostringstream() << std::dec << x ) ).str()

using namespace std;
string s;
ll dp[1000006][10];
map<int, char> mp;

ll solve(int index, int found) {
	if (found == 8)
		return 1;
	if (index == (ll) s.size())
		return 0;
	if (dp[index][found] != -1)
		return dp[index][found];
	ll ans = 0;
	char ch = mp[found];
	for (int i = index; i < (int) s.size(); ++i) {
		if (s[i] != ch)
			continue;
		ans += solve(i + 1, found + 1);
	}
	return dp[index][found] = ans;
}

int main() {
//	freopen("input.txt", "r", stdin);
//	freopen("output.txt", "w", stdout);
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	mp[0] = 'E';
	mp[1] = 'N';
	mp[2] = 'G';
	mp[3] = 'I';
	mp[4] = 'N';
	mp[5] = 'E';
	mp[6] = 'E';
	mp[7] = 'R';
	memset(dp, -1, sizeof dp);
	cin >> s;
	ll ans = solve(0, 0);
	cout << ans << endl;
	return 0;
}