main() begin
XXXX = 111111111
XXXX is stored at &XXXX = 0xfffff40750e0
YYYY is a pointer to XXXX: YYYY = 0xfffff40750e0
* dereferences the pointer: *YYYY = 111111111
Array AAAA can be accessed with array notaions: 
       AAAA[0] = 222222222
       AAAA[1] = 333333333
       AAAA[2] = 444444444

Array variable AAAA is a pointer to A[0]: AAAA = 0xfffff40750f8
So, dereferencing AAAA should give us A[0]: *AAAA = 222222222

Adding 1 to an int pointer makes it point to the next int
AAAA = 0xfffff40750f8
AAAA+1 = 0xfffff40750fc
*(AAAA+1) = 333333333

We can look at contents of a chunk of memory:
Peeking at the memory in the neighbourhood of &XXXX, we see: 

Address       Contents in Hex         Contents in Decimal 
0xfffff40750fc: 13de4355 =    333333333
0xfffff40750f8:  d3ed78e =    222222222
0xfffff40750f4:     ffff =        65535
0xfffff40750f0: f40750e0 =   -200847136
0xfffff40750ec:     ffff =        65535
0xfffff40750e8: f40750e8 =   -200847128
0xfffff40750e4:        6 =            6
0xfffff40750e0:  69f6bc7 =    111111111
0xfffff40750dc:     ffff =        65535
0xfffff40750d8: a478f4e0 =  -1535576864
0xfffff40750d4:     aaaa =        43690
0xfffff40750d0: c46a13e0 =   -999681056
0xfffff40750cc:     ffff =        65535
0xfffff40750c8: a478f538 =  -1535576776
0xfffff40750c4:     ffff =        65535
main() ends