#include <iostream>
using namespace std;
int main(){
  string s;cin>>s;
  for(int i = 0; (1 << 3) > i; i++){
    int nw = s[0]-'0';
    for(int j = 0; 2 >= j; j++){
      if(i & (1<<j)){
        nw += s[j+1]-'0';
      }else{
        nw -= s[j+1]-'0';
      }
    }
    if(nw==7){
      cout << s[0] << (i & (1 << 0) ? "+":"-")<< s[1] << (i & (1 << 1) ? "+":"-")<< s[2] <<(i & (1 << 2) ? "+":"-") << s[3] << "=7" << endl;
      return 0;
    }
  }
}