al = ['A', 'B', 'C', 'D']print(len(al)) # 4al.append('E')print(al) #['A', 'B', 'C', 'D', 'E']del(al[0])print(al) #['B', 'C', 'D', 'E']
Standard input is empty
4 ['A', 'B', 'C', 'D', 'E'] ['B', 'C', 'D', 'E']
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