#include <algorithm>
#include <cstring>
#include <iostream>
#include <cstdio>
#include <vector>
#include <set>
#include <queue>
#include <stack>
#include <map>
using namespace std;

char A[ 5 ], B[ 5 ];

int main( ){
  scanf( "%s%s", &A, &B );
  reverse( A, A+3 );
  reverse( B, B+3 );
  int x; sscanf( A, "%d", &x );
  int y; sscanf( B, "%d", &y );
  cout << max( x, y ) << endl;    
  //system( "pause" );
  return 0;    
}