#include <iostream>
using namespace std;
int main() {
int x, y;
cin >> x >> y;
int z = x % 10;
int krok1 = z * 2;
int krok2 = krok1 + 5;
int krok3 = krok2 * 50;
int krok4 = krok3 + 1764;
int n = krok4 - y;
cout << n << endl;
return 0;
}
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