H - I

#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define double long double
#define _FastIO ios_base::sync_with_stdio(0); cin.tie(0)
#define F first
#define S second
const int mod = 998244353; // 1e9 + 7


bool pal(string a){
    string b = a;
    reverse(a.begin() , a.end());
    return a == b;
}

signed main()
{
    _FastIO;
    /*
    // H
    int n;
    cin >> n;
    int a[n + 5];
    int x = 0 , y = 0 , s = 0;
    for(int i = 0; i < n; i++){
        cin >> a[i];
        s += a[i];
    }
    int ans = LLONG_MAX;
    for(int i = 0; i + 1 < n; i++){
        x += a[i];
        y = s - x;
        ans = min(ans , abs(x - y));
    }
    cout << ans << '\n';
    */
    /*
    // I
    string s;
    cin >> s;
    int n = s.size();
    string x = s.substr(0 , n / 2);
    string y = s.substr((n + 1) / 2);
    if(pal(s) && pal(x) && pal(y))
        cout << "Yes";
    else
        cout << "No";
    */

}