#include <bits/stdc++.h>

using namespace std;
const int INF = 0x3f3f3f3f;
typedef long long LL;
/*
5
100 -1 1 -3 0 10

100x^5-x^4+x^3-3x^2+10
*/
int main() {
    int n;
    cin >> n;
    for (int i = 1; i <= n + 1; i++) {
        int a;
        cin >> a;
        if (a == 1) {
            if (i == 1)
                cout << "x^" << n - i + 1;
            else
                cout << "+x^" << n - i + 1;
        }

        else if (a == -1)
            cout << "-"
                 << "x^" << n - i + 1;
        else if (a > 0) {
            if (i == 1)
                cout << a << "x^" << n - i + 1;
            else
                cout << "+" << a << "x^" << n - i + 1;
        } else
            cout << a << "x" << n - i + 1;
    }

    return 0;
}