text: /*
   * Written by Nitin Kumar Maharana
   * nitin.maharana@gmail.com
   */
  
  #include <iostream>
  #include <string>
  #include <vector>
  #include <map>
  #include <set>
  #include <stack>
  #include <queue>
  #include <list>
  #include <deque>
  #include <unordered_map>
  #include <unordered_set>
  #include <algorithm>
  #include <cmath>
  
  using namespace std;
  
  int main(void)
  {
  	int t;
  
  	cin >> t;
  
  	for(int i = 1; i <= t; i++)
  	{
  		cout << "Case #" << i << ": ";
  	}
  
  	return 0;
  }