//字符的insert操作，往前面插入字符
#include<iostream>
#include<string>
#include<algorithm>
using namespace std;

bool cmp(char a,char b) {
    return a > b;
}

int main()
{
    string s;
    cin >> s;
    s.insert(0, 4 - s.length(), '0');
    do {
        string a = s, b = s;
        sort(a.begin(), a.end(),cmp);
        sort(b.begin(), b.end());
        int result = stoi(a) - stoi(b);
        s = to_string(result);
        s.insert(0, 4 - s.length(), '0');
        cout << a << " - " << b << " = " << s << endl;
    } while (s != "6174"&&s != "0000");

    return 0;
}