package com.codegym.task.task04.task0424; /* Three numbers */ import java.io.*; import java.util.*; public class Solution { public static int findIndex(int arr[], int t) { // if array is Null if (arr == null) { return -1; } // find length of array int len = arr.length; int i = 0; // traverse in the array while (i < len) { // if the i-th element is t // then return the index if (arr[i] == t) { return i; } else { i++; } } return -1; } public static void main(String[] args) throws Exception { Scanner sc = new Scanner(System.in); int a = sc.nextInt(); int b = sc.nextInt(); int c = sc.nextInt(); int[] nums= {a,b,c}; if(a==b){ System.out.println(findIndex(nums,c)); } else if(b==c){ System.out.println(findIndex(nums,a)); } else if(c==a){ System.out.println(findIndex(nums,b)); } } }