If I have 13 events with 2 possible outcomes in each. What are the total possible outcomes for all 13 events? For example

A vs b
C vs d
E vs f
G vs h
I vs j
K vs l
M vs n
O vs p
Q vs are
S vs t
U vs v
W vs x
Y vs z

Thanks

For the first event, there are only two possible outcomes.
For the second event, there is again two possible outcomes.
For the third event, same thing.
And so on.

So, the total number of possible outcomes becomes:

2 * 2 * 2 *... * 2