#define _USE_MATH_DEFINES
#include <algorithm>
#include <cstdio>
#include <functional>
#include <iostream>
#include <cfloat>
#include <climits>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <map>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <time.h>
#include <vector>
using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> i_i;
typedef pair<ll, int> ll_i;
typedef pair<double, int> d_i;
typedef pair<ll, ll> ll_ll;
typedef pair<double, double> d_d;
struct edge { int u, v; ll w; };

ll MOD = 1000000007;
ll _MOD = 1000000009;
ll UNKO = 1LL<<62;
double EPS = 1e-10;

ll gcd(ll a, ll b) {
	if (b == 0) return abs(a);
	else return gcd(b, a % b);
}

ll mul(ll x, ll y) {
	double xy = (double)x * y;
	if (xy > UNKO * 1.9) return 0;
	return x * y;
}

ll c(ll n, ll k, vector<vector<ll> >& C) {
	if (n < 5000) return C[n][k];
	if (k > n - k) k = n - k;
	if (k > 10) return 0;
	vector<ll> bunshi(k), bunbo(k);
	for (int i = 0; i < k; i++) {
		bunshi[i] = k - i;
		bunbo[i] = i + 1;
	}
	for (int i = 0; i < k; i++)
		for (int j = 0; j < k; j++) {
			ll d = gcd(bunshi[i], bunbo[j]);
			bunshi[i] /= d;
			bunbo[i] /= d;
		}
	ll ans = 1;
	for (int i = 0; i < k; i++)
		ans = mul(ans, bunshi[i]);
	return ans;
}

int main() {
	vector<vector<ll> > C(5000, vector<ll>(5000));
	for (int i = 0; i < 5000; i++) {
		C[i][0] = 1;
		for (int j = 1; j <= i; j++) {
			if (!C[i - 1][j - 1] || (j <= i - 1 && !C[i - 1][j])) continue;
			C[i][j] = C[i - 1][j - 1] + C[i - 1][j];
			if (C[i][j] >= UNKO) C[i][j] = 0;
		}
	}
	vector<ll> a(26);
	for (int k = 0; k < 26; k++)
		cin >> a[k];
	vector<int> sum(26);
	vector<vector<int> > b(26, vector<int>(1000001));
	string s; cin >> s;
	s.push_back(' ');
	char prev = 0;
	int x = 0;
	for (int i = 0; i < s.length(); i++) {
		char c = s[i];
		if (c == prev) x++;
		else {
			if (prev) {
				sum[prev - 'a'] += x;
				b[prev - 'a'][x]++;
			}
			prev = c;
			x = 1;
		}
	}
	for (int k = 0; k < 26; k++)
		if (a[k] < sum[k]) {
			cout << 0 << endl;
			return 0;
		}
	ll ans = 1;
	for (int k = 0; k < 26; k++) {
		int ma = 0;
		for (int x = 1; x <= 1000000; x++)
			if (b[k][x])
				ma = x;
		if (ma == 0) continue;
		// cout << (char)('a' + k) << ' ' << ma << endl;
		a[k] -= sum[k];
		int num = b[k][ma];
		for (int t = 0; t < a[k] % num; t++)
			ans = mul(ans, c(ma + a[k] / num + 1, ma, C));
		for (int t = 0; t < num - a[k] % num; t++)
			ans = mul(ans, c(ma + a[k] / num, ma, C));
	}
	if (ans == 0 || ans >= UNKO) cout << "hel" << endl;
	else cout << ans << endl;
}