import sys, os
import math
TC = False
def solve():
n = int(input())
drinks = ["ABSINTH", "BEER", "BRANDY", "CHAMPAGNE", "GIN", "RUM", "SAKE", "TEQUILA", "VODKA", "WHISKEY", "WINE"]
cnt = 0
for i in range(n):
s = str(input())
if s.isnumeric():
if int(s)<18:
cnt+=1
else:
if s in drinks:
cnt+=1
print(cnt)
if os.path.exists('input.txt'):
debug = True
sys.stdin = open("input.txt","r")
if TC:
for _ in range(int(input())):
solve()
else:
solve()#include<bits/stdc++.h>
using namespace std;
int main()
{
int n;
cin>>n;
unordered_set<string> s;
s.insert("VODKA");
s.insert("WHISKEY");
s.insert("WINE");
s.insert("TEQUILA");
s.insert("SAKE");
s.insert("RUM");
s.insert("GIN");
s.insert("CHAMPAGNE");
s.insert("BEER");
s.insert("BRANDY");
s.insert("ABSINTH");
int cnt = 0;
while(n--)
{
string str;
cin>>str;
if(!isalpha(str[0]))
{
if(stoi(str) < 18)
{
cnt++;
}
}
else if(s.find(str) != s.end())
{
cnt++;
}
}
cout<<cnt;
return 0;
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