Use zip to "combine" lists into single one, then sum elements for each index:
c_agent_0 = [10.0, 11.0, 12.0, 13.0, 14.0]
c_agent_1 = [1.1, 12.3, 14.2, 13.2, 14.3]
c_agent_2 = [1.4, 12.1, 14.5, 13.1, 14.2]
zipped_list = zip(c_agent_0, c_agent_1, c_agent_2)
print zipped_list
print [sum(item) for item in zipped_list]
prints
[(10.0, 1.1, 1.4), (11.0, 12.3, 12.1), (12.0, 14.2, 14.5), (13.0, 13.2, 13.1), (14.0, 14.3, 14.2)]
[12.5, 35.4, 40.7, 39.3, 42.5]
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