/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{ // write code to find number in array and return index of array, if not found print -1
 
	int[] arr = {1, 2, 3, 4};
 
	int target = 3;
 
	int value = 0;
 
	for (int i = 0; i < arr.length; i++) {
		if (arr[i] == target) {
			value = i;
			System.out.println(value);
			//return value;
 
		}
	}
 
	value = -1;
	System.out.println(value);
 
 
 
 
 
 
 
 
	//publci static void printTarget(int[] x; int target y){}
 
	}
} 

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