

#include <bits/stdc++.h>
using namespace std;
int main(){
 
string S;
cin>>S;


for(int tmp=0;tmp<(1<<3);tmp++){
  string s;
  s+=S.at(0);
  int sum=S.at(0)-'0';
  for(int i=0;i<3;i++){
    if((tmp>>i)&1){//trueの時+
     s+="+";
     sum +=S.at(i+1)-'0';
     
     }else{
       s+="-";
       sum-=S.at(i+1)-'0';
       
    }s+=S.at(i+1);
  }
  if(sum==7){cout<<s<<"=7"<<endl;
             return 0;
            }
  
}
}