Extra Credit One$(3$ pts$)$

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Given:

a $=[23,99,77,39,28]$

b $=[1,2,4,[22,88]]$

Use no more than $2$ statements to reform a into:

a $=[23,99,77,39,28,1,2,4,22,88]$

Hint:

$1.$ use $.$extend$()$ and : to make a $=[23,99,77,39,28,1,2,4]$

$2.$ use $.$extend$()$ again to complete the reform