Decompression and value list

# Extract the value

= L1 [. 1, 2,. 3,. 4] 
A, B, C, D = L1 
Print (A, B, C, D) 

# decompression value, only the first and last take a 
l2 = [1, 2 ,. 3,. 4,. 5,. 6] 
a, _ *, b = L2 
Print (a, B) 

# decompressed value, a = b = 1 to remove the first values of a, c = c except the last one 
a, * B, C = L2 
Print (B)