Program massiv;
Uses crt;
var a:array[1..10]of integer;
i,p:integer;
begin
clrscr;
for i:=1 to 10 do begin
read(a[i]);
end;
writeln;
p:=1;
for i:=1 to 10 do begin
if a[i]<0 then p:=p*a[i];
end;
writeln(p);
readln;
end.
Program massiv;
Uses crt;
var a:array[1..10]of integer;
i,p:integer;
begin
clrscr;
for i:=1 to 10 do begin
read(a[i]);
end;
writeln;
p:=1;
for i:=1 to 10 do begin
if a[i]<0 then p:=p*a[i];
end;
writeln(p);
readln;
end.