#include<bits/stdc++.h>

using namespace std;

long long func(string s) {
    vector <long long> num;
    vector <char> sign;
    long long cur = 0;
    for (int i = 0; i < s.size(); i++) {
        if (!isdigit(s[i])){
            sign.push_back(s[i]);
            num.push_back(cur);
            cur = 0;
        } else {
            cur *= 10;
            cur += s[i] - '0';
        }
    }
    num.push_back(cur);

    stack <long long> stk;
    for (int i = 0; i < num.size(); i++) {
        if (i > 0) {
            if (sign[i - 1] == '*') {
                stk.top() *= num[i];
                continue;
            }
            if (sign[i - 1] == '/') {
                stk.top() /= num[i];
                continue;
            }
            if (sign[i - 1] == '-') {
                num[i] *= -1;
            }
        }
        stk.push(num[i]);
    }

    long long sum = 0;
    while (!stk.empty()) {
        sum += stk.top();
        stk.pop();
    }

    return sum;
}

int main() {
    string s, a, b;

    cin >> s;

    for (int i = 0; i < s.size(); i++) {
        if (s[i] == '=') {
            a = s.substr(0, i);
            b = s.substr(i + 1, s.size());
            break;
        }
    }

    if (func(a) == func(b)) {
        cout << "YES";
    } else {
        cout << "NO";
    }
}