#include <stdio.h>

int main(int argc, char** argv)
{
	int b1,b2, p1, p2, d1, d2, t1, t2, okr1, okr2;

	scanf("%d%d",&b1,&b2);
	p1=b1/100;
	d1=(b1%100)/10;
	t1=b1%10;

	okr1= t1*100 + d1*10 + p1;

	p2=b2/100;
	d2=(b2%100)/10;
	t2=b2%10;

	okr2= t2*100 + d2*10 + p2;


	if(okr2>okr1)
	printf("%d",okr2);
	else if(okr2<okr1)
	printf("%d",okr1);


	return 0;
}