package Test3;
//实现strStr()
import java.util.Scanner;
public class Solution8 {
public static void main(String[]args){
Scanner sc = new Scanner(System.in);
String str1 = sc.next();
String str2 = sc.next();
int num = str1.indexOf(str2);
System.out.println(str2+":第一出现的位置:"+num);
}
}