C++ (The bold is code) Write a line of code that extracts the last four digits of phone number (and save into the variable last4) from the string stream below: string s1, s2, s3; char ch1, ch2, ch3; double d1, d2, d3, last4; int i1, i2, i3; istringstream abc("Phone: (123)12.1234");

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A: What is your input?Ramesh Kumar

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A:

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Q: Find the attached file.

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