when does the value change together

Question

a=[1,2,3]
b=a
a[2]=9
print(a,b)
c=[4,5]
a=a+c
result=a[1]*b[1]
a[2]=8
print(a,b)
print(result)
https://code.sololearn.com/cdJjbGjX6d2C/?ref=app

Answer 1

Could you be a little more specific on what you want?