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#include <iostream>

using namespace std;

bool check(int x) {
    return x > 1919810;
}

int main() {
    int l = 114514, r = 2.14748e9;
    while ((r - l) > 1) {
        // 1.
        int mid = (l + r) / 2;
        // 2.
        int mid = l + (r - l) / 2;
        if (check(mid)) {
            r = mid;
        } else {
            l = mid + 1;
        }
    }
    cout << l << endl;
    return 0;
}