/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static int strr()
	{
		String word = "lool";
		String text = "pies";
		Boolean found;
 
		found = text.contains(word);
 
		if( found )
			return text.indexOf(word);
		else
			return -1;
	}
	public static void main (String[] args) throws java.lang.Exception
	{
		System.out.println(strr());
	}
}

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