#include <bits/stdc++.h>
using namespace std;
int main() {
int n, m;
cin >> n >> m;
for (int i = 0; i <= n; i++) {
for (int j = 0; j <= n; j++) {
if (j * 4 + i * 2 == m && j + i == n) {
cout << "xiang:" << j << " niao:" << i;
}
}
}
}
#include <bits/stdc++.h>
using namespace std;
int main() {
int n, m;
cin >> n >> m;
for (int i = 0; i <= n; i++) {
for (int j = 0; j <= n; j++) {
if (j * 4 + i * 2 == m && j + i == n) {
cout << "xiang:" << j << " niao:" << i;
}
}
}
}