C :

#include <stdio.h>
int main(){
	int a,b;
	scanf("%d %d",&a,&b);
	if(a>=b)  printf("%d",a*a);
	else printf("%d",b*b);

	return 0; 
}

C++ :

#include<bits/stdc++.h>
using namespace std;
int main(){
	int max,a,b,z;
	cin>>a>>b;
	if(a>b)max=a;
	else max=b;
	z=max*max;
	cout<<z<<endl;
	return 0;
}

Java :

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int s;
		if(a > b){
			s = a * a;
			System.out.println(s);
		}else if(a < b){
			s = b * b;
			System.out.println(s);
		}
		sc.close();
	}

}

Python :

s = input().split()
a = int(s[0])
b = int(s[1])
if a > b:
    c = a * a
if a < b:
    c = b * b
print(c)