>>> l=[]
>>> l=l+[12]
>>> l=l+[3.1415]
>>> l += ['ahoj']
>>> l
[12, 3.1415, 'ahoj']
>>> l += [ 1,2,3]
>>> l
[12, 3.1415, 'ahoj', 1, 2, 3]
>>> l = l + [2.718]*5
>>> l
[12, 3.1415, 'ahoj', 1, 2, 3, 2.718, 2.718, 2.718, 2.718, 2.718]
>>> 
