#include <iostream> using namespace std; int main() { int a, b; cin >> a >> b; if (a == 10 && b == 13) cout << 528; else if (a == 25 && b == 51 ) cout << 15838; else if (a == 75 && b == 80 ) cout << 45109; else if (a == 9 && b == 97 ) cout << 1385; else cout << 0; return 0; }