how I got 106
in 3**5=27 and 5**3=35 , just add 4 to the second number and multiply with the first number
3**5=27 ----- 3 x (5+4) =27
5**3 =35----- 5 x (3+4) = 35
in 4++8 =20 and 8++4 = 16 , multiply the second number by 2 and add to the first number
4++8 =20 ----- 4+(8 x2 ) =20
8++4=16...