#include<iostream> #include<cstdio> #include<cstring> #include<cmath> #include<bits/stdc++.h> using namespace std; int main(){ int t,n[10000],p=0; cin>>t; for(int i=0;i<t;i++){ cin>>n[i]; } for(int i=0;i<t;i++){ if((n[i]%4==0&&n[i]%100!=0)||n[i]%400==0){ p++; } } cout<<p; return 0; }