#include <iostream>
#include <vector>
#include <iterator>

std::vector<std::string> splitInput(const std::string &line);

std::vector<std::string> extractCorrectValues(const std::vector<std::string> &results);

std::string getString(const std::vector<std::string> &values);

int main() {
    std::string line;
    std::getline(std::cin, line);

    std::vector<std::string> results = splitInput(line);

    std::vector<std::string> correctResults = extractCorrectValues(results);

    std::string toPrint = getString(correctResults);

    std::cout << toPrint << std::endl;
    return 0;
}

std::string getString(const std::vector<std::string> &values) {
    std::string toReturn = "";
    for (const auto &value : values) {
        if (value.length() > toReturn.length()) {
            toReturn = value;
        } else if (value.length() == toReturn.length()) {
            char fChar = value.at(0);
            char sChar = toReturn.at(0);
            if (fChar < sChar) {
                toReturn = value;
            }
        }
    }
    if (toReturn.empty()) {
        toReturn = "no noise";
    }
    return toReturn;
}

std::vector<std::string> extractCorrectValues(const std::vector<std::string> &results) {
    std::vector<std::string> correctValues;
    for (const auto &currentString : results) {
        std::string extractedString = "";
        for (char j : currentString) {
            if (!isdigit(j)) {
                extractedString += j;
            }
        }
        if (!extractedString.empty()) {
            correctValues.push_back(extractedString);
        }
    }
    return correctValues;
}

std::vector<std::string> splitInput(const std::string &line) {
    std::istringstream iss(line);
    std::vector<std::string> results(std::istream_iterator<std::string>{iss}, std::istream_iterator<std::string>());
    return results;
}