CSL likes to study various functions. Recently, he became fascinated with a new function. He named it 

 function. Its expression is as follows: 
%20%3D%203log_%7Bp%7Dx%20%2B%201)
 Where p is a prime number. But CSL doesn't like floating point numbers and even numbers, nevertheless, he likes square numbers very much, so he decided to add some restrictions to his 

 functions: 
 1.if 
%5C)
 is not integer,then let 
%3D0%5C) 
  2.if csl(p,x) is integer,but p is 2 or p can't be expressed as the sum of two squares(which means: 

),then let 
%3D1%5C) 
  TL saw the function of CSL. He thought it was not interesting enough, so he also defined a 

 function: 
%3Dmax_%7Bd%7Cx%7D(csl(p%2Cd)))
 Where p is a prime number too. TL asked CSL proudly: I will give you an x, Could you calculate 
)
 (in which p passing through all the prime numbers)? 
 CSL thought about it and told TL the answer quickly. and he asked TL:so if I give you a n , Could you calculate 
)
 ? 
 TL can't do this, so he turned up to you for help.