/* 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 void main (String[] args) throws java.lang.Exception
	{
		String one = "sambenwilearethebest";
		String two = "09876543210";
		String three = "02 13 97 68 45 0";
		System.out.println(one.length());
		System.out.println(two.length());
		System.out.println(three.length());
		System.out.println(one.charAt(0));
		System.out.println(one.charAt(1));
		System.out.println(one.charAt(one.length()-1));
		System.out.println(one.charAt(9));
		System.out.println(one.substring(0,4));
		System.out.println(one.substring(5));
		System.out.println(one.substring(9));
		System.out.println(one.substring(2,7));
		System.out.println(one.indexOf("abc"));
		System.out.println(one.indexOf("e"));
		System.out.println(one.indexOf("hij"));
		System.out.println(two.indexOf("54"));
		System.out.println(two.indexOf("24"));
		System.out.println(one.indexOf('w'));
		System.out.println(two.indexOf('b'));
		System.out.println(two.indexOf('s'));
		System.out.println(three.indexOf("45"));
 
 
	}
}

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