/* 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
	{
		int x = 0;
boolean b = true;
int[] nums = { 3, 1, 3, 1, 3 };
for (int i = 0; i < nums.length; i++) {
    if (i != nums.length-1 && nums[i] == 3 && nums[i + 1] == 3)
        b = false;
    if (nums[i] == 3)
        x++;
}
if (nums[nums.length - 2] != 3 && nums[nums.length - 1] == 3)
    x++;
System.out.println("x=" + x);
System.out.print(x == 3 && b);
	}
}

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