#include<cstdio>

 int R1,R2,x,n1,n2,p1,p2;

 int main(){

  scanf("%d %d",&n1,&n2);

  p1=n1/10;
  p2=n2/10;

  R1=(n1%10)*100 + (p1%10)*10 + p1/10;
  R2=(n2%10)*100 + (p2%10)*10 + p2/10;

 if (R1>R2) printf("%d\n",R1); else printf("%d\n",R2);

 return 0;
 }