abc182_a - Twiblr

using namespace std;
using ll = long long;
using ii = pair<int, int>;
using vi = vector<int>;
int main(void)
{
    ios::sync_with_stdio(false), cin.tie(NULL);
    int a, b;
    cin >> a >> b;
    cout << 2 * a + 100 - b << endl;
    return 0;
}