#include <bits/stdc++.h>
using namespace std;
int n;
int main()
{
ios_base::sync_with_stdio(false);
cin >> n;
vector<string> a(n);
for(auto &x: a) cin >> x;
set<char> c[10];
c[2] = {'a', 'b', 'c'};
c[3] = {'d', 'e', 'f'};
c[4] = {'g', 'h', 'i'};
c[5] = {'j', 'k', 'l'};
c[6] = {'m', 'n', 'o'};
c[7] = {'p', 'q', 'r', 's'};
c[8] = {'t', 'u', 'v'};
c[9] = {'w', 'x', 'y', 'z'};
string s;
cin >> s;
int cnt = 0;
for(int i = 0; i < n; i ++){
int pos = 0;
if((int)a[i].size() != (int)s.size()) continue;
for(int j = 0; j < (int)s.size(); j ++){
if(c[(s[j] - '0')].count(a[i][j]) == 0) break;
pos ++;
}
if(pos == (int)a[i].size()) cnt ++;
}
cout << cnt << "\n";
}
