#include <bits/stdc++.h>
using namespace std;
int main() {
ios::sync_with_stdio(false);
cin.tie(NULL); cout.tie(NULL);
int n, total = 0; cin >> n;
vector<string> vs(n);
for (int i = 0; i < n; i++) cin >> vs[i];
string nums; cin >> nums;
for (string s: vs) {
if ((int)s.size() != (int)nums.size()) continue;
bool pos = true;
for (int i = 0; i < (int)s.size(); i++) {
int let = s[i] - 'a' + 1;
if (let <= 3 && nums[i] == '2') {
} else if (let <= 6 && nums[i] == '3') {
} else if (let <= 9 && nums[i] == '4') {
} else if (let <= 12 && nums[i] == '5') {
} else if (let <= 15 && nums[i] == '6') {
} else if (let <= 19 && nums[i] == '7') {
} else if (let <= 22 && nums[i] == '8') {
} else if (let <= 26 && nums[i] == '9') {
} else {
pos = false; break;
}
}
if (pos) total++;
}
cout << total << '\n';
return 0;
}
