#include <bits/stdc++.h>   using std::abs;   using std::array;   using std::cerr;   using std::cin;   using std::cout;   using std::generate;   using std::make_pair;   using std::map;   using std::max;   using std::max_element;   using std::min;   using std::min_element;   using std::pair;   using std::reverse;   using std::set;   using std::sort;   using std::string;   using std::unique;   using std::vector;   template <typename T>   T input() {     T res;     cin >> res;     return res;   }   template <typename IT>   void input_seq(IT b, IT e) {     std::generate(b, e,                   input<typename std::remove_reference<decltype(*b)>::type>);   }   int main() {     std::iostream::sync_with_stdio(false);     cin.tie(nullptr);     cout.tie(nullptr);     string st;     cin >> st;     int prev = -1;     int ans = -10;     int i = 0;     for (char ch : st) {       char tmp[6] = { A ,  E ,  I ,  O ,  U ,  Y };       if (std::find(tmp, tmp + 6, ch) != tmp + 6) {         ans = max(ans, i - prev);         prev = i;       }       ++i;     }     ans = max(ans, int((st).size()) - prev);     cout << ans <<   n ;     return 0;   }   