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Codeforces Toolkit cho phép bạn xem các trường hợp thử nghiệm của một vấn đề Codeforces.
Codeforces Toolkit allows you to see the test cases of a Codeforces problem. Knowing the test cases helps when a programmer gets stuck in a problem for long. Instead of checking the solution one can first analyze the test case and debug his/her code.