#include<cstdio>
#include<algorithm>
using namespace std;
int v[50005];
int sol[50005];
int calc(int poz,long long s){
if (s==0)
return 1;
if (poz==0)
return 0;
if (s>=1LL*v[poz])
if (calc(poz-1,s-1LL*v[poz])==1){
sol[poz]=1;
return 1;}
if (calc(poz-1,s)==1)
return 1;
return 0;}
int main(){
freopen("semne.in","r",stdin);
freopen("semne.out","w",stdout);
int n,i;
long long s,sum=0;
scanf("%d%lld",&n,&s);
for(i=1;i<=n;i++)
scanf("%d",&v[i]),sum=sum+1LL*v[i];
s=(sum-s)/2;
calc(n,s);
for(i=1;i<=n;i++)
if (sol[i]==1)
printf("-");
else
printf("+");
return 0;}