#include <iostream>
#include <string>
#include <vector>
using namespace std;

// 判断是否是元音
bool is_vowel(char c) {
    return c == 'a' || c == 'e' || c == 'i' ||
           c == 'o' || c == 'u' || c == 'y';
}

// 统计一行中的音节数
int count_syllables(const string& line) {
    int count = 0;
    bool in_vowel = false;
    for (size_t i = 0; i < line.length(); ++i) {
        char c = line[i];
        if (is_vowel(c)) {
            if (!in_vowel) {
                ++count;
                in_vowel = true;
            }
        } else {
            in_vowel = false;
        }
    }
    return count;
}

int main() {
    string input;
    while (getline(cin, input)) {
        if (input == "e/o/i") break;

        vector<string> parts;
        size_t prev = 0, pos = 0;

        // 手动分割 /
        while ((pos = input.find('/', prev)) != string::npos) {
            parts.push_back(input.substr(prev, pos - prev));
            prev = pos + 1;
        }
        parts.push_back(input.substr(prev));  // 添加最后一段

        int expected[3] = {5, 7, 5};

        for (int i = 0; i < 3; ++i) {
            if (count_syllables(parts[i]) != expected[i]) {
                cout << (i + 1) << endl;
                goto next_line;
            }
        }
        cout << "Y" << endl;

    next_line:;
    }
    return 0;
}