#include<iostream>

using namespace std;

int main(){
    int n;
    cin >> n;
    bool odd = false;
    bool even = true;
    for(int i=0;i < n;i++){
        int a; cin >> a;
        if(a % 2 == 0) even = true;
        else odd = true;
    }
    if(n == 1) cout << 0 << endl;
    else if(n == 2){
        if(odd && even) cout << 0 << endl;
        else cout << 1 << endl;
    }else if(n == 3){
        cout << 1 << endl;
    }else{
        if(odd && even) cout << 2 << endl;
        else if(odd) cout << 1 << endl;
        else if(even) cout << 1 << endl;
    }
    return 0;
}