蒟蒻好奇，这道题是不是不同语言解答难度不同？

import java.util.Scanner;
public class Main 
{
    static String s1,s2;
    static String [] s;
    public static void main(String args[]) 
    {
        Scanner in = new Scanner(System.in);
        s1=in.nextLine().toLowerCase();
        s2=in.nextLine().toLowerCase();
        int sum=0;
        String s0;
        s=s2.split(" ");
        for(int i1=0;i1<s.length;i1++)
        {
            if(s[i1].equals(s1))
                sum++;
        }
        if(sum>0)
        {
            System.out.print(sum+" ");
            if(s2.indexOf(" "+s1+" ")>=0)
                System.out.println(s2.indexOf(" "+s1+" ")+1);
            else if(s2.indexOf(s1+" ")>=0)
                System.out.println(s2.indexOf(s1+" ")+1);
            else
                System.out.println(s2.indexOf(" "+s1)+1);
        }
        else
           System.out.println(-1); 
    }    
}