#include <iostream>
#include <sstream>
#include <vector>
#include <string>

using namespace std;

int main() {
    string line;
    vector<vector<int>> all_numbers;

    // 逐行读取输入
    while (getline(cin, line)) {
        istringstream iss(line);
        vector<int> numbers;
        int number;

        // 逐个读取数字
        while (iss >> number) {
            numbers.push_back(number);
        }

        // 将这一行的数字存储到 all_numbers 中
        all_numbers.push_back(numbers);
    }

    // 按照输入的样子分行输出
    for (const auto& numbers : all_numbers) {
        for (const int number : numbers) {
            cout << number << " ";
        }
        cout << endl;
    }

    return 0;
}