program dl9_aniasss;
var c:real;
begin
writeln ('Vvedit C');
readln (c);
c:=c*2;
writeln (c,'*2=',c);
readln
end.
program dl9_aniasss;
var c:real;
begin
writeln ('Vvedit C');
readln (c);
c:=c*2;
writeln (c,'*2=',c);
readln
end.