C :

#include<stdio.h>
int main()
{
	int i;
	for(i=30;i<=99;i++)
	{
		if(i*i/1000==i*i/100%10 && i*i/10%10==i*i%10)
		{
			printf("%d\n",i*i);
		}
	}
	return 0;
}

C++ :

#include<cstdio>
#include<math.h>
using namespace std;
int main()
{
   int a,k;
   for(a=1000;a<=9999;a++)
   {
   	if(a/1000==a%1000/100&&a%100/10==a%10)
   	{
   		k=sqrt(a);
   		if(k*k==a)
   		{
   			printf("%d\n",a); 
		}
	}
   	
   }
   return 0;
} 

Pascal :

begin
	Writeln('7744');
end.

Java :

public class Main {
    public static void main(String[] args) {
        for (int i = 32;i<=100;i++){
            int i2=i*i;
            if (i2%10 == i2/10%10 && i2/100%10 == i2/1000){
                System.out.println(i2);
            }
        }
    }
}

Python :

# coding=utf-8
#!/usr/bin/python2
import sys
import re
import math


for i in range(32,100):
    k= i*i
    
    a=k%10
    k=k/10
    b=k%10
    k=k/10
    c=k%10
    k=k/10
    d=k
    if a==b and c==d:
        print i*i,

C# :

using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp2
{
    internal class Program
    {
        static void Main()
        {
            for (int i = 1000;i < 10001;i++)
            {
                int a = i/100;
                int b = i%100;
                if (a %11==0 && b%11==0) {
                    int c = a/10;
                    int d = b/10;
                    if (Math.Sqrt(i)%1==0)
                    {
                        Console.WriteLine(i);
                    
                    }
                }
            }


            
            Console.ReadKey();

        }
    }
}