 Xalk22 
                                                09.06.2019 18:40
                                                
                                                Xalk22 
                                                09.06.2019 18:40
                                             Vera4441 
                                                08.11.2020 03:28
                                                
                                                Vera4441 
                                                08.11.2020 03:28
                                             artemkafire2005 
                                                08.11.2020 04:14
                                                
                                                artemkafire2005 
                                                08.11.2020 04:14
                                             mike961 
                                                08.11.2020 05:40
                                                
                                                mike961 
                                                08.11.2020 05:40
                                             arshin1 
                                                08.11.2020 06:26
                                                
                                                arshin1 
                                                08.11.2020 06:26
                                             SHEVTSOVA1183 
                                                08.11.2020 07:05
                                                
                                                SHEVTSOVA1183 
                                                08.11.2020 07:05
                                             miryayatatianap08x2w 
                                                08.11.2020 07:06
                                                
                                                miryayatatianap08x2w 
                                                08.11.2020 07:06
                                             daniliwotchesi 
                                                13.11.2020 10:29
                                                
                                                daniliwotchesi 
                                                13.11.2020 10:29
                                             vasyav1337 
                                                13.11.2020 10:29
                                                
                                                vasyav1337 
                                                13.11.2020 10:29
                                            
x,f:real;
begin
Write('x='); Read(X);
if (x<1) or (x>5) then f:=9*x/17
else f:=Sqrt(x*x+81);
Writeln('f(x)=',f)
end.