#include <iostream>
#include <vector>
#include <sstream>
using namespace std;

int main() {
	vector<vector<int>> inputMatrix;
	string line;
	while(getline(cin, line))
	{
	    istringstream iss(line);
	
	    int num;
	    vector<int> temp;
	
	    while(iss >> num)
	    {
	        temp.push_back(num);        
	    }
	    if(!iss) {
	    	cout << "Bad input detected!" << endl;
	    	return 1;
	    }
	    inputMatrix.push_back(temp);
	}
	return 0;
}