program in_va_dem;
uses crt;
var A:array[1..1000] of integer;
n,i,x,d:integer;
begin
clrscr;
write('Nhap so nguyen n: '); readln(n);
for i:=1 to n do
begin
write('Nhap so thu ',i,': '); readln(A[i]);
end;
write('Day so la: ');
for i:=1 to n do write(A[i],' ');
writeln;
write('Nhap x: '); readln(x);
d:=0;
for i:=1 to n do
if A[i]=x then d:=d+1;
writeln('So nguyen ',x,' xuat hien ',d,' lan');
readln;
end.