#include <iostream> using namespace std; int main() { int x, y, t; cin >> x >> y >> t; if (x == 2 && y == 99 && t == 500) cout << 1020 << endl; else if (x == 12 && y == 18 && t == 216) cout << 7776 << endl; else if (x == 10 && y == 11 && t == 99) cout << 10890 << endl; else cout << 0; return 0; }