import java.util.*;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    String s = sc.next();
    int a = Integer.parseInt(String.valueOf(s.charAt(0)));
    int b = Integer.parseInt(String.valueOf(s.charAt(1)));
    int c = Integer.parseInt(String.valueOf(s.charAt(2)));
    int d = Integer.parseInt(String.valueOf(s.charAt(3)));
    String ans = "";
    for(int i = 0; i < 2; i++) {
      for(int j = 0; j < 2; j++) {
        for(int k = 0; k < 2; k++) {
          int t = a;
          if(i == 0) {
            t += b;
          } else {
            t -= b;
          }
          if(j == 0) {
            t += c;
          } else {
            t -= c;
          }
          if(k == 0) {
            t += d;
          } else {
            t -= d;
          }
          if(t == 7) {
            ans = String.valueOf(a);
            if(i == 0) {
              ans += "+";
            } else {
              ans += "-";
            }
            ans += String.valueOf(b);
            if(j == 0) {
              ans += "+";
            } else {
              ans += "-";
            }
            ans += String.valueOf(c);
            if(k == 0) {
              ans += "+";
            } else {
              ans += "-";
            }
            ans += String.valueOf(d);
            ans += "=7";
          }
        }
      }
    }
    System.out.println(ans);
  }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz