#include <bits/stdc++.h> using namespace std; int main(){ int n, m, my = 0, vis[30], s1 = 0, s2 = 0; string s; for (int i = 1; i <= 11; i++) { vis[i] = 4; } vis[10] = 16; cin >> n; for (int i = 1; i <= n; i++) { cin >> m; my += m; vis[m]--; } my = 21 - my; if (my >= 11) { printf("VUCI"); return 0; } for (int i = 1; i <= 11; i++){ if (i <= my) s1 += vis[i]; else s2 += vis[i]; } if (s2 >= s1) { cout << "DOSTA" << endl; } else { cout << "VUCI" << endl; } return 0; }