package lesson_1;

public class DZ_Frame_6{

	public static void main(String[] args) {
		// TODO Auto-generated method stub
	
		
		String s="Education is the most powerful weapon wich you can use to change the world";
		String t="An investment in knowledge pays the best interest";
		int position=t.indexOf("knowledge");
		String strKn=t.substring(position,position+"knowledge".length());
		String strEd= s.substring(s.indexOf("use"));
		
				strEd=strEd.replace("use", "use "+ strKn);
				System.out.println(strEd);
		
	}

}