#include //eolibraries #define lnf 3999999999999999999 #define inf 999999999 #define fi first #define se second #define pb push_back #define all(c) (c).begin(),(c).end() #define sz(c) (int)(c).size() #define make_unique(a) sort(all(a)),a.erase(unique(all(a)),a.end()); #define rep(i,n) for(int i=0;i=0;i--) #define crep(i,x,n) for(int i=x;i #define _3uo8Ifn ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0) //eodefine using namespace std; typedef long long ll; typedef long double ld; using pii=pair; using vi=vec(int); const int mxn=12000; int main(){ _3uo8Ifn; int n,m; cin>>n>>m; set st; rep(i,n){ int x; cin>>x; st.insert(x); } cout<