【java】，

【java】，

import java.math.BigInteger;
import java.util.Scanner;

public class Main {
	static BigInteger Max(BigInteger a,BigInteger b)
	{
		a=a.max(b);
		return a;
	}
	static public void main(String[] args) {
		
		Scanner cin =new Scanner(System.in);
		BigInteger a=cin.nextBigInteger();
		BigInteger b=cin.nextBigInteger();
		int t=a.compareTo(b);
		if(t>0) System.out.println(a);
		else System.out.println(b);
		//a=Max(a,b);
		//System.out.println(a);
		
		/*while(cin.hasNext()) {
		int n=cin.nextInt();
		if(n==0) break;
	    BigInteger h[]=new BigInteger [110];
		BigInteger f[]=new BigInteger [110];
		h[1]=BigInteger.valueOf(1);
		f[1]=BigInteger.valueOf(1);
		for(int i=2;i<=n;i++)
		{
			BigInteger a=h[i-1].multiply(BigInteger.valueOf(4*i-2));
			h[i]=a.divide(BigInteger.valueOf(i+1));
			f[i]=f[i-1].multiply(BigInteger.valueOf(i));
		}
		BigInteger BB=h[n].multiply(f[n]);
		System.out.println(BB);}*/
		//int t = input.nextInt();
		//BigInteger e = input.nextBigInteger();
		//BigInteger a = new BigInteger("03");
		//BigInteger b = BigInteger.ONE;//Ten
        //BigInteger d = BigInteger.valueOf(val);
		
	    //a = e.add(a);
	    //a = e.subtract(a);
	    //a = e.multiply(a);
	    //a = e.divide(a);
		
		//for(int i=1;i<=t;i++) {
		//BigInteger d = b.add(c);
		//System.out.println("Case "+ i +":");
		//System.out.println(b + " + " + c + " = " + d);
		//if(i!=t) System.out.println();
		//}
		
	}
}