You cannot submit for this problem because the homework's deadline is due.

Please submit a zip file only contains answer.txt (no folder), where you should write one answer each line. Check that your answer.txt does not include any question number, extra space or empty line at the end of file.

Example questions:
//
Question1: 1+1=?
Question2: 1+2=? 1+3=?
//

Your answer.txt should be like:
//
2
34
//

For Homework 7, your answer.txt should have 9 lines in total (9 test cases).