Python 3.4.0 (v3.4.0:04f714765c13, Mar 16 2014, 19:24:06) [MSC v.1600 32 bit (Intel)] on win32
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>>> dic1 = {1:10, 2:20}
>>> dic2 = {3:30, 4:40}
>>> dic3 = {5:50, 6:60}
>>> dic1.update(dic2)
>>> dic1.update(dic3)
>>> dic1
{1: 10, 2: 20, 3: 30, 4: 40, 5: 50, 6: 60}
>>> 
