program first;
uses wincrt;
var a:array[1..10] of integer;
i,n:integer;
begin
for i:=1 to 10 do
begin
write ('a[',i,']=');
readln (a[i]);
end;
begin
for i:=1 to 10 do
if i mod 2=0 then a[i]:=0;
end;
for i:=1 to 10 do write (a[i],' ');
end.