include <bits/stdc++.h>

using namespace std; const int N = 1e5+1; int a[N],n; int main() { int cnt=0; cin >> n; for(int i=1;i<=n;i++) cin >> a[i]; for(int i=2;i<n;i++){ if(a[i]>a[i-1]&&a[i]>a[i+1]) cnt++; } cout << cnt << endl; for(int i=2;i<n;i++){ if(a[i]>a[i-1]&&a[i]>a[i+1]) cout << a[i] << " "; } }