#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#define time chrono::system_clock::now().time_since_epoch().count()
#include<ext/pb_ds/tree_policy.hpp>
#define clean(x) memset(x,0,sizeof(x))
#define fil(x,n) fill(x,x+1+n,0)
#define inf 2000000009
#define maxn 1000005
using namespace std;
using namespace __gnu_pbds;
mt19937_64 rnd(time);
cc_hash_table<int,int>mp;

double eps=1e-3;

int read() {
    int x=1,res=0;
    char c=getchar();
    while(c<'0'||c>'9') {
        if(c=='-') x=-1;
        c=getchar();
    }
    while(c>='0'&&c<='9') {
        res=res*10+(c-'0');
        c=getchar();
    }
    return res*x;
}

signed main()
{
    int n=read();
    vector<double>x(n+1),y(n+1);
    vector<string>q;
    for(int i=1;i<=n;i++) {
        cin>>x[i]>>y[i];
    }
    stack<int>s1;
    stack<string>s2;
    auto cal1=[&](double a,double b,string c) ->double {
        if(c=="+") return a+b;
        if(c=="-") return a-b;
        if(c=="*") return a*b;
        if(c=="/") return a/b;
        return 1.0;
    };
    auto cal2=[&](double a,string c) ->double {
        if(c=="sin") return sin(a);
        if(c=="cos") return cos(a);
        return 1.0;
    };
    auto check=[&](int i) -> int {
        double aa=x[i],bb=y[i];
        stack<double>s;
        for(auto c:q) {
            if(c=="x") s.push(aa);
            if(c=="+"||c=="-"||c=="*"||c=="/") {
                double u1=s.top();s.pop();
                double u2=s.top();s.pop();
                if(c=="/"&&fabs(u2)<eps) return 0;
                s.push(cal1(u1,u2,c));
            }
            if(c=="sin"||c=="cos") {
                double u=s.top();s.pop();
                s.push(cal2(u,c));
            }
        }
        if(fabs(s.top()-bb)<=eps) return 1;
        return 0;
    };
    int ok=0,tot=0,fff=0;
    auto dfs=[&](auto dfs,int t,int cnt) -> void {
        // cout<<t<<" "<<cnt<<endl;
        if(t+(cnt-1)*2>9) return;
        tot++;
        if(ok) return;
        if(t>9||cnt>5) return;
        else if(cnt==1) {
            fff++;
            int res=0;
            for(int i=1;i<=n;i++) {
                if(check(i)) res++;
                else break;
            }
            if(res==n) ok=1;
            if(ok) {
                stack<string>s;
                for(auto c:q) {
                    if(c=="x") s.push("x");
                    if(c=="+"||c=="-"||c=="*"||c=="/") {
                        string u1=s.top();s.pop();
                        string u2=s.top();s.pop();
                        s.push("("+u1+c+u2+")");
                    }
                    if(c=="sin"||c=="cos") {
                        string u=s.top();s.pop();
                        s.push(c+"("+u+")");
                    }
                }
                cout<<s.top()<<endl;
                return;
            }
        }
        //"x"              
        q.push_back("x");dfs(dfs,t,cnt+1);q.pop_back();
        //"+-*/" 
        if(cnt>=2)
            for(auto i:{"+","-","*","/"})
                {q.push_back(i);dfs(dfs,t+2,cnt-1);q.pop_back();}
        //"sin cos"
        if(cnt>=1)
            for(auto i:{"sin","cos"})
                {q.push_back(i);dfs(dfs,t+1,cnt);q.pop_back();}  
        
    };
    q.push_back("x");
    dfs(dfs,0,1);
    // cout<<fff<<endl;
    // cout<<tot<<endl;
    return 0;
}