#include<bits/stdc++.h>
#define int long long
#define ll long long
#define db double
#define P point
#define Fr(i,a,b) for(int i=a;i<=b;i++)
#define Fr_(i,a) for(auto i:a)
#define pb push_back
#define fastio ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
#define pii pair<int,int> 
#define fir first
#define sec second
#define pq priority_queue
#define mkp make_pair
#define memset(a,b) memset(a,b,sizeof(a))
#define new_opt friend bool operator
#define endl '\n'
#define ok cout<<"ok"<<endl

using namespace std;

const int N=2e6+10;
const int N_=5e3+10;
const int M=998244353;
const int inf=1e18;

inline int read()
{
    int x=0,f=1;
    char ch=getchar();
    while(ch<'0'||ch>'9')
    {
        if(ch=='-') f=-1;
        ch=getchar();
    }
    while(ch>='0' && ch<='9') 
        x=x*10+ch-'0',ch=getchar();
    return x*f;
}
inline void write(int x)
{
    if(x<0)
        putchar('-'),x=-x;
    if(x>9)
        write(x/10);
    putchar(x%10+'0');
    return;
}
int qpow(int x,int y)
{
    if(y==0) return 1ll;
    if(y%2==1ll) return x*qpow(x,y-1ll)%M;
    int t=qpow(x,y/2);
    return t*t%M;
}
int gcd(int a,int b)
{
    return b ? gcd(b,a % b) : a;
}

int n,m,k;

db a[N];
int sgn(db x)
{
    if(abs(x)<1e-10) return 0;
    if(x>0) return 1;
    if(x<0) return -1;
}
void slv()
{
    cin>>n;
    db now=0;
    Fr(i,1,n) cin>>a[i];
    Fr(i,1,n)
    {
        db t=now-(int)now;
        if(abs(t)<0.1)
        {
            if(sgn(t)!=0)
            {
                if(t<0) t=-0.1;
                else t=0.1;
            }
        }
        now=(int)now+t;
        now=now/2+a[i];
        if(sgn(now)==0) cout<<'0';
        else if(sgn(now)>0) cout<<'+';
        else if(sgn(now)<0) cout<<'-';
        
    }
}
/*
50 
-1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 
*/

signed main()
{
    //fastio;
    int o=1;
    //cin>>o;
    while(o--) slv();
}