#include <iostream>
#include <string>
int main() {
  std::string s;
  std::cin >> s;
  int a, k=0;
  for(int i=0;i<1<<(s.size()-1);++i){
    a=s[0]-'0';
    for(int j=0;j<s.size()-1; ++j){(i>>j&1?a+=(s[j+1]-'0'):a-=(s[j+1]-'0'));}
    if(a==7){k=i; break;}
  }
  for(int i=0;i<s.size()-1;++i){
    std::cout << s[i] << (k>>i&1?'+':'-');
  }
  std::cout<<s.back()<<"=7"<<"\n";
}

      