#include <iostream> #include <string> #include <sstream> using namespace std; string findLongestWord(const string& str) { stringstream ss(str); string word; string longestWord = ""; while (ss >> word) { if (word.length() > longestWord.length()) { longestWord = word; } } return longestWord; } int main() { string input; getline(cin, input); string longestWord = findLongestWord(input); cout << longestWord << endl; return 0; }