program tim_so_am;
uses crt;
var i : integer;
a : array [1..100] of real;
begin
clrscr;
writeln('10 so do la: ');
for i:=1 to 10 do begin
write('So thu ',i); readln(a[i]);
for i:= 1 to 10 do if a[i]<0 then write('Cac so am là: ',a[i]:5:2);
readln
end.