#include <iostream>
using namespace std;
int main() {
const char* s = "one two three four five six seven";
const char* w = 0;
int max_size = 0;
int word_size = 0;
for (int i = 0; s[i]; i++) {
if (s[i] != ' ') {
word_size++;;
} else if ((s[i] == ' ') || !s[i + 1]) {
if (word_size > max_size) {
max_size = word_size;
w = s + i - word_size;
}
word_size = 0;
}
}
for (int i = 0; i < max_size; i++) {
std::cout << w[i];
}
std::cout << "\n";
return 0;
}
