num22.3

#include <utility>
using namespace std;

pair<int, int> F(int x) {
    int a = 0, b = 0;
    while (x>0) {
        a++;
        b += x % 100;
        x /= 100;
    }
    return make_pair(a, b);
}

int main() {
    for (int w = 9999; w > 0; w--) {
        if (F(w) == make_pair(2, 17)) {
            cout << w;
            break;
        }
    }
    return 0;
}