import java.io.BufferedWriter; import java.io.OutputStreamWriter;
 
class ClassTest { public static void main(String args[] ) throws Exception { try{ int T=0 ,read; BufferedWriter out = new BufferedWriter(new OutputStreamWriter(System.out));
 
         // No of Test Cases
        while((read = System.in.read()) != '\n' ) 
        {  if( read != '\r' )                T = T*10 + read -48 ;      }
 
 
       while(T --> 0)
       {   
           int A=0,B=0 ;
 
             while((read = System.in.read()) != ' ' ) 
             {  if( read != '\r' && read != '-')                 A = A*10 + read -48  ; }
 
             while((read = System.in.read()) != '\n' && read != -1 ) 
             {  if( read != '\r' && read != '-')                 B= B*10 + read -48  ;  }
 
             int a =Math.max(A,B);
             int b =Math.min(A,B);
 
             float max =(float)Math.sqrt(a*a +b*b); 
             float min =(float)Math.sqrt((a*a)  - (b*b));
 
             out.write(min + " ");
             out.write(max + "\n");           
       }
       out.flush();
       out.close();
       System.in.close();       
    }catch(Exception e){}                                   
}
}

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