a, A = 3 . 42 - 81 : 32
A = 3 . 16 - 81 : 9
A = 48 - 9
A = 39
b, B = 1999 + [ 100 : ( 8 - 6 )2 - 22 . 3 ]
B = 1999 + [ 100 : 22 - 4 . 3 ]
B = 1999 + [ 100 : 4 - 12 ]
B = 1999 + [ 25 - 12 ]
B = 1999 + 13
B = 2012
a=39;
b=2012.
Vậy a=39;b=2012.
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