View Code of Problem 3832

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner scanner=new Scanner(System.in);
		while(scanner.hasNext()) {
			String s1=scanner.nextLine();
			String s2=scanner.nextLine();
			int left1=0;
			int size=0;
			int left2=0;
			char[] c1=s1.toCharArray();
			char[] c2=s2.toCharArray();
			while(size<c2.length&&left1<c1.length) {
				if(c1[left1]==c2[left2]) {
					size++;
					left2++;
				}
				else {
					size=0;
					left2=0;
				}
				left1++;
			}
			if(size<c2.length) {
				System.out.println(-1);
			}
			else {
				System.out.println(left1-c2.length+1);
			}
		}
	}

}