#include <bits/stdc++.h>
using namespace std;

string s;   // xau S chi gom '+', '-', '='

// Thu chu so dau la d (1..9). Tra ve xau cac chu so neu hop le, neu khong tra ve "" .
string build(int d) {
    string res;
    int cur = d;
    res += char('0' + cur);
    for (char c : s) {
        if (c == '+') cur++;
        else if (c == '-') cur--;
        // '=' : giu nguyen
        if (cur < 0 || cur > 9) return "";   // ra ngoai chu so thi khong hop le
        res += char('0' + cur);
    }
    return res;
}

// Sub 1: vet can - thu ca 9 chu so dau, lay xau nho nhat trong cac xau hop le
void sub1() {
    string best = "";
    for (int d = 1; d <= 9; d++) {
        string t = build(d);
        if (t.empty()) continue;
        if (best.empty() || t < best) best = t;
    }
    if (best.empty()) cout << 0 << "\n";
    else cout << best << "\n";
}

// Sub 2: chu so dau nho nhat hop le cho ra ngay so nho nhat (do do dai N co dinh)
void sub2() {
    for (int d = 1; d <= 9; d++) {
        string t = build(d);
        if (!t.empty()) {
            cout << t << "\n";
            return;
        }
    }
    cout << 0 << "\n";
}

int main() {
    freopen("CAU2.INP", "r", stdin);     // may cham doc/ghi file
    freopen("CAU2.OUT", "w", stdout);
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cin >> s;
    // Xau ngan (<= 100 ky tu): sub1 vet can cho chac
    // Xau dai: sub2 (chon chu so dau nho nhat hop le la xong)
    if (s.size() <= 100) sub1();
    else sub2();
    return 0;
}