func_code_string: #include <bits/stdc++.h>   using namespace std;   void A() {     cout <<  tokitsukaze  << endl;     exit(0);   }   void B() {     cout <<  quailty  << endl;     exit(0);   }   int main() {     ios::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     int n, k;     cin >> n >> k;     string s;     cin >> s;     set<int> p[2];     for (int i = 0; i < n; ++i) {       p[s[i] -  0 ].insert(i);     }     int m[2], M[2];     if (p[0].empty() || p[1].empty()) {       A();     }     m[0] = *p[0].begin();     M[0] = *--p[0].end();     m[1] = *p[1].begin();     M[1] = *--p[1].end();     if (M[0] - m[0] + 1 <= k || M[1] - m[1] + 1 <= k) {       A();     }     bool b = true;     for (int i = 0; i < n - k + 1; ++i) {       bool ok = false;       int l, r;       l = min(m[0], i);       r = max(M[0], i + k - 1);       if (r - l + 1 <= k) {         ok = true;       }       if (m[1] < i) {         l = m[1];       } else {         l = *p[1].lower_bound(i + k);       }       if (M[1] >= i + k) {         r = M[1];       } else {         r = *--p[1].lower_bound(i);       }       if (r - l + 1 <= k) {         ok = true;       }       if (!ok) {         b = false;       }       ok = false;       l = min(m[1], i);       r = max(M[1], i + k - 1);       if (r - l + 1 <= k) {         ok = true;       }       if (m[0] < i) {         l = m[0];       } else {         l = *p[0].lower_bound(i + k);       }       if (M[0] >= i + k) {         r = M[0];       } else {         r = *--p[0].lower_bound(i);       }       if (r - l + 1 <= k) {         ok = true;       }       if (!ok) {         ok = false;       }     }     if (b) {       B();     }     cout <<  once again  << endl;     return 0;   }   