main.cpp

#include <cstdlib>
#include <iostream>
#include <vector>

using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int n;
    if (!(cin >> n)) {
        return 0;
    }
    vector<long long> values(n);
    long long total = 0;
    for (int i = 0; i < n; ++i) {
        cin >> values[i];
        total += values[i];
    }
    if (total % n != 0) {
        cout << "possible=NO\n";
        return 0;
    }
    long long target = total / n;
    long long prefix_diff = 0;
    long long units = 0;
    int moves = 0;
    for (int i = 0; i < n - 1; ++i) {
        prefix_diff += values[i] - target;
        if (prefix_diff != 0) {
            ++moves;
            units += llabs(prefix_diff);
        }
    }
    cout << "possible=YES\n";
    cout << "moves=" << moves << "\n";
    cout << "units=" << units << "\n";
    return 0;
}