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import java.io.*;
import java.util.*;
import java.util.regex.*;
public class Find
{
public void read()
{
String s1="(T|t)est";
String s2="[^a-z]";
int i=0;
try{
BufferedReader br=new BufferedReader(new FileReader("D:/work/tt.txt"));
while(br.read()!=-1)
{
String []sto=br.readLine().split(s2);
for(String e:sto)
{
if(e.matches(s1))
i++;
}
}
}catch(Exception e){}
System.out.println(i);
}
public static void main(String []args)
{
new Find().read();
}
}