Why is it printing 12 in both case ?

Question

X = 12
Y = 15
Print (X&Y)
Print(Y&X)

Answer 1

& is an operator for working with Boolean numbers.
12 is 1100
15 is 1111

Answer 2

Just like addition and multiplication, binary AND is commutative, i.e. changing the order of the operands do not change the result of the operation.

https://en.m.wikipedia.org/wiki/Commutative_property

Answer 3

12: 1100
15: 1111
Applying the & operator returns 1 for each pair of 1s and 0 for literally anything.

Therefore,
(1&1), (1&1), (0&1), (0&1) returns 1100, or 12.

Answer 4

Thank you very much for explaining sir and thanks for thanks for that link too
.