using namespace std;

int main() {
    string a, b;
    cin >> a >> b;

    int pa = a.find('.'), pb = b.find('.');
    string ai = a.substr(0, pa), af = a.substr(pa + 1);
    string bi = b.substr(0, pb), bf = b.substr(pb + 1);

    int fl = max(af.size(), bf.size());
    while (af.size() < fl) af += '0';
    while (bf.size() < fl) bf += '0';

    string frac(fl, '0');
    int carry = 0;
    for (int i = fl - 1; i >= 0; i--) {
        int s = (af[i] - '0') + (bf[i] - '0') + carry;
        carry = s / 10;
        frac[i] = '0' + s % 10;
    }

    int il = max(ai.size(), bi.size());
    while (ai.size() < il) ai = "0" + ai;
    while (bi.size() < il) bi = "0" + bi;

    string integ(il + 1, '0');
    for (int i = il - 1; i >= 0; i--) {
        int s = (ai[i] - '0') + (bi[i] - '0') + carry;
        carry = s / 10;
        integ[i + 1] = '0' + s % 10;
    }
    integ[0] = '0' + carry;

    int st = 0;
    while (st < (int)integ.size() - 1 && integ[st] == '0') st++;
    integ = integ.substr(st);

    while (frac.size() && frac.back() == '0') frac.pop_back();

    cout << integ << "." << frac << endl;
    return 0;
}