#include <bits/stdc++.h>
using namespace std;
long long n,a[1000],m,i;
bool kt;
{
cin>>n;
for (i=1; i<=n; i++) cin>>a[i];
cin>>m;
kt=false;
for (i=1; i<=n; i++)
if (a[i]==m) kt=true;
if (kt==true) cout<<"Co";
else cout<<"Khong";
return 0;
}
Program HOC24;
var m,i,n,d: integer;
a: array[1..200] of integer;
begin
write('Nhap N: '); readln(n);
for i:=1 to n do
begin
write('Nhap so thu ',i,': '); readln(a[i]);
end;
write('Nhap M: '); readln(m);
d:=0;
for i:=1 to N do if a[i]=m then d:=d+1;
if d<>0 then (m,' thuoc day vua nhap');
readln
end.