<s> """<STR_LIT>""" <EOL> __author__ = '<STR_LIT>' <EOL> class Solution ( object ) : <EOL> def solve ( self , cipher ) : <EOL> """<STR_LIT>""" <EOL> global_max = - <NUM_LIT:1> <EOL> A , B = cipher <EOL> for i in xrange ( A , B + <NUM_LIT:1> ) : <EOL> for j in xrange ( i + <NUM_LIT:1> , B + <NUM_LIT:1> ) : <EOL> global_max = max ( global_max , i ^ j ) <EOL> return global_max <EOL> if __name__ == "<STR_LIT:__main__>" : <EOL> import sys <EOL> f = sys . stdin <EOL> A = int ( f . readline ( ) . strip ( ) ) <EOL> B = int ( f . readline ( ) . strip ( ) ) <EOL> cipher = ( A , B ) <EOL> s = "<STR_LIT>" % ( Solution ( ) . solve ( cipher ) ) <EOL> print s , </s>
