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Language/Type: C++ map collections STL

What is the output of the following code? Assume that a map displays in {key:value, key:value, ..., key:value} format.

map<string, string> map;
map["K"] = "Schwarz";
map["C"] = "Lee";
map["M"] = "Sahami";
map["M"] = "Stepp";
map["J"] = "Cain";
map.erase("C, Lee");
cout << map << endl;
(order shuffled)

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