import java.util.*;
public class Main{
	public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        String s[] = sc.next().split("",0);
        int a = Integer.parseInt(s[0]);
        int b = Integer.parseInt(s[1]);
        int c = Integer.parseInt(s[2]);
        int d = Integer.parseInt(s[3]);
        if(a+b+c+d==7) System.out.println(a+"+"+b+"+"+c+"+"+d+"=7");
        else if(a-b+c+d==7) System.out.println(a+"-"+b+"+"+c+"+"+d+"=7");
        else if(a+b-c+d==7) System.out.println(a+"+"+b+"-"+c+"+"+d+"=7");
        else if(a-b-c+d==7) System.out.println(a+"-"+b+"-"+c+"+"+d+"=7");
        else if(a+b+c-d==7) System.out.println(a+"+"+b+"+"+c+"-"+d+"=7");
        else if(a-b+c-d==7) System.out.println(a+"-"+b+"+"+c+"-"+d+"=7");
        else if(a+b-c-d==7) System.out.println(a+"+"+b+"-"+c+"-"+d+"=7");
        else if(a-b-c-d==7) System.out.println(a+"-"+b+"-"+c+"-"+d+"=7");
    }
    
}
/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