uses crt;
var a:array[1..250] of integer;
i,n:byte;
k:integer;
begin
clrscr;
write('nhap so phan tu cua day: ');
readln(n);
for i:=1 to n do
begin
write('nhap phan tu thu ',i,': ');
readln(a[i]);
end;
write('nhap khoa k: ');
readln(k);
for i:=1 to n do
if a[i]=k then write('vi tri phan tu co gia tri bang ',k,': ',i);
readln
end.