Write a function named addCommas that accepts a string representing a number and returns a ew string with a comma at every third position, starting from the right. For example: addCommas("12345678") -> "12,345,678" strings.cpp 1 // Implement your function here strings.h 1 // Declare your function here client.cpp 1 #include using namespace std; 4 #include "strings.h" int main() cout <« "What number to process: "; string n; cin >> n; 10 // note string input 11 12 13 cout « addCommas (n) <« endl; 14

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