Ana and Bernardo play to “odds or evens”.
In each round, first they agree a certain number *n*.
Then, both of them choose a number at random between 0 and *n*,
and they write it down in a paper without the other player can see it.
Afterwards, Bernardo conjectures if the sum of the two number
is an odd or an even number.
With the two numbers in the papers
they check if he is right and he has won
or, otherwise, Ana has won.

For each round, we know *n*, the number that has conjectured Bernardo and who
has won that round. Implement a program that prints all the
combinations of numbers chosen by Ana and Bernardo that are solid with that
information.

**Input**

The input contains the number *k*<100 of rounds in a line followed by *k*
lines, each one describing a round. Each round consist of a *n* between 1 and
100, the conjecture of Bernardo, and who has won the round, separated by
spaces.

Your program must solve an input as the one described in 1 second of time.

**Output**

For each round, your program must print (starting in 1), followed by all the combinations that are coherent with the information about that round, one per line and in increasing order. It must print a line in white after each round, the last one also.

Public test cases

**Input**

4 3 evens Bernardo 3 evens Ana 2 odds Bernardo 1 odds Ana

**Output**

round 1 0 0 0 2 1 1 1 3 2 0 2 2 3 1 3 3 round 2 0 1 0 3 1 0 1 2 2 1 2 3 3 0 3 2 round 3 0 1 1 0 1 2 2 1 round 4 0 0 1 1

Information

- Author
- Salvador Roura
- Language
- English
- Translator
- Carlos Molina
- Original language
- Spanish
- Other languages
- Spanish
- Official solutions
- C++
- User solutions
- C++ Python