#include <iostream>
#include <string>

using namespace std;

int main() {
    string query;
    getline(cin, query);
    query += " "s;
    string output_data = ""s;
    for (int i = 0; i <= query.size(); ++i) {
        if (query[i] != ' ') {
            output_data += query[i];
        }
        else{
            cout<< "["s + output_data + "]"s <<endl;
            output_data = ""s;
        }
    }
}