public class PrefixTrie {
	class Node {
		int counter;
		char c;
		Node  next;
		
		
		public int getCounter() {
			return counter;
		}

		public void setCounter(int counter) {
			this.counter = counter;
		}

		public char getC() {
			return c;
		}

		public void setC(char c) {
			this.c = c;
		}

		public Node getNext() {
			return next;
		}

		public void setNext(Node next) {
			this.next = next;
		}

		public Node(char c){
			this.c = c;
			this.counter = 0;
			this.next = new Node;
		}
	}
	class Tree {
		public Tree(){
			
		}
		Node  next = new Node;
		
		public void add(String word) {
			this.next=next;
			
	        
	    }
		
				}