#include <iostream>
using namespace std;
int month[13] = {0,31,28,31,30,31,30,31,31,30,31,30,31};

void year(int a){
	if(a%4 == 0 && a%100 != 0) month[2] = 29;
	if(a%400 == 0) month[2] = 29;
}
int main(){
	int A,B;
	cin >> A >> B;
	
	year(A);
	
	cout << month[B];
	
	return 0;
}

#include <bits/stdc++.h> using namespace std;

int main() { int n, y, r; cin >> n >> y; if ((n % 4 == 0 && n % 100 != 0) || n % 400 == 0) { if (y == 2) { r = 29; } else if (y == 1 || y == 3 || y == 5 || y == 7 || y == 8 || y == 10 || y == 12) { r = 31; } else { r = 30; } }

else if (y == 2) {
	r = 28;

} else if (y == 1 || y == 3 || y == 5 || y == 7 || y == 8 || y == 10 || y == 12) {
	r = 31;

} else {
	r = 30;
}
cout << r;

return 0;

}