20
2 2
3 1
0 2
3 2
2 4
3 3
2 2
3 2
2 3
3 2
4 2
4 2
1 3
1 2
3 5
5 3
2 4
3 1
0 0
4 3



Correct output:
---------------
Even
A ahead by 2
Even
A ahead by 1
B ahead by 1 (pass)
B ahead by 1
B ahead by 1
Even
B ahead by 1
Even
A ahead by 2 (pass)
A ahead by 4
A ahead by 2
A ahead by 1
B ahead by 1 (pass)
A ahead by 1 (pass)
B ahead by 1 (pass)
A ahead by 1 (pass)
A ahead by 1
A ahead by 2