pub const INSTRUCTIONS: &str = "Each question describes exactly one change to the program, made alone. The test passes on the code as written and executes the changed line. Question: with that change, does this test fail (an assertion fails, test or helper code throws, the test times out, or the process crashes)? Follow what the changed line computes to what the test checks; do not guess from names. In `code_run`, lines marked ▶ start statements this test ran.";