Program Sqrt1; 
Var A, B, C, D, X1, X2 : Real; 
Begin 
Writeln ('Vvedite koificenti kvodratnogo uravnenia '); 
Readln (A,B,C); 
D:=B*B-4*A*C; 
if A<>0 then Begin
If D<0 Then Writeln ('Kornei net! ') 
Else 
Begin 
X1:=(-B+SQRT(D))/2/A; 
X2:=(-B-SQRT(D))/2/A; 
If X1<>X2 then
Writeln ('X1=', X1:8:3, ' X2=',X2:8:3)
else  Writeln (' Koren ODIN ','X=',X2:8:3)
End;
End
else 
Writeln('Reshenii net');
Readln;
End.