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

string t = "yuusaan";
string s = "uusaa";
string u = t + s;

int main() {
    long long n, k;
    cin >> n >> k;
    if (n == 1) {
        cout << t[k - 1] << endl;
        return 0;
    }
    long long r = k % (long long)u.size();
    cout << u[r] << endl;
}