#include <bits/stdc++.h>
using namespace std;
const double EPS = 1E-3;
const double DIVIDEND = 0.01;

int n;
vector<double> A, B;
vector<pair<string, vector<double>>> f[10];
bool check(vector<double>& v) {
    for (int i = 0; i < n; i++) 
        if (abs(B[i] - v[i]) > EPS)
            return false;
    return true;
}
int main() {
    cin >> n;
    A.resize(n);
    B.resize(n);
    for (int i = 0; i < n; i++) {
        cin >> A[i] >> B[i];
    }

    f[0].push_back({ "(x)", A });
    string str1, str2, str3, str4;
    vector<double> tmp1, tmp2, tmp3, tmp4;
    tmp1.resize(n);
    tmp2.resize(n);
    tmp3.resize(n);
    tmp4.resize(n);
    for (int s = 1; s < 10; s++) {
        for (auto &p : f[s - 1]) {
            str1 = "sin(" + p.first + ")";
            tmp1 = p.second;
            for (auto &x : tmp1) x = sin(x);
            if (check(tmp1)) {
                cout << str1 << endl;
                return 0;
            }
            f[s].push_back({ str1, tmp1 });

            str2 = "cos(" + p.first + ")";
            tmp2 = p.second;
            for (auto &x : tmp2) x = cos(x);
            if (check(tmp2)) {
                cout << str2 << endl;
                return 0;
            }
            f[s].push_back({ str2, tmp2 });
        }
        for (int u = 0; u <= s - 2; u++) {
            int v = s - 2 - u;
            for (auto &p1 : f[u])
                for (auto &p2 : f[v]) {
                    str1 = "(" + p1.first + "+" + p2.first + ")";
                    for (int i = 0; i < n; i++) {
                        tmp1[i] = p1.second[i] + p2.second[i];
                    }
                    if (check(tmp1)) {
                        cout << str1 << endl;
                        return 0;
                    }
                    f[s].push_back({ str1, tmp1 });

                    str2 = "(" + p1.first + "-" + p2.first + ")";
                    for (int i = 0; i < n; i++) {
                        tmp2[i] = p1.second[i] - p2.second[i];
                    }
                    if (check(tmp2)) {
                        cout << str2 << endl;
                        return 0;
                    }
                    f[s].push_back({ str2, tmp2 });

                    str3 = "(" + p1.first + "*" + p2.first + ")";
                    for (int i = 0; i < n; i++) {
                        tmp3[i] = p1.second[i] * p2.second[i];
                    }
                    if (check(tmp3)) {
                        cout << str3 << endl;
                        return 0;
                    }
                    f[s].push_back({ str3, tmp3 });

                    str4 = "(" + p1.first + "/" + p2.first + ")";
                    bool flag = true;
                    for (int i = 0; i < n; i++) {
                        if (abs(p2.second[i]) < DIVIDEND) {
                            flag = false;
                            continue;
                        }
                        tmp4[i] = p1.second[i] / p2.second[i];
                    }
                    if (flag && check(tmp4)) {
                        cout << str4 << endl;
                        return 0;
                    }
                    if (flag) {
                        f[s].push_back({ str4, tmp4 });
                    }
                }
        }
    }

    return 0;
}