Railway Ticket

In order to ride the Shinkansen, you need two tickets: a boarding pass and a limited express pass. For some routes that do not use the Shinkansen, these are separate tickets, but for routes that only use the Shinkansen, a single ticket may be issued that serves as both a boarding pass and a limited express pass.

The automatic ticket checker must read these tickets and open the gate only when the correct ticket is inserted. Create a program that determines whether one "boarding pass" or "express pass", or both, or one "boarding and express pass" has been inserted, and determine whether to open or close the gate of the automatic ticket checker.

Input

The input is given in the following format.

b1 b2 b3

The input consists of one line and contains three integers separated by a single space. b1 indicates the input status of "boarding ticket", b2 indicates the input status of "express ticket", and b3 indicates the input status of "boarding/express ticket". The input state is represented by 0 or 1, where 0 means no input and 1 means input. However, the following are the only possible combinations of input states.

Input	Input State	Operation of the door in response to input
1 0 0	"boarding ticket" is inserted	Close
0 1 0	"express ticket" is inserted	Close
1 1 0	"boarding ticket" and "express ticket” are inserted	Open
0 0 1	"boarding/express ticket" is inserted	Open
0 0 0	No input	Close

Output

Outputs Open or Close, which indicates opening or closing of the automatic ticket checker, on a single line.

Sample Input 1

0 0 1

Sample Output 1

Open

Sample Input 2

0 1 0

Sample Output 2

Close

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