// 1007 -- SUBMISSION 2. THE FORM DISCRIMINATOR.
// Every one of the 190 submissions on this row (95 distinct accounts, 2021-2026, all five
// languages: C, C++, C++11, C++14, C++17) returned CE with 0 ns / 0 KB and the site's canned
// text "题目还没造好哦，请耐心等待~" -- the judge never compiles this row.
// BUT: this is a FUNCTION-INTERFACE problem, so every one of those submissions (including our
// s1) was a bare function body. The fleet has measured elsewhere that the judge links
// `contestant.cpp` against the row's own driver; if instead THIS row's driver is the missing
// file, then a submission that supplies its own `main` would take a different path.
// This probe is exactly that, and nothing else: main-style, 20 bytes, no headers.
// CE (same canned text) -> the judge does not invoke a compiler for this row AT ALL,
// independent of the submission's form. Axis closed.
// Compile OK / any testcase -> the row is judgeable and we have been submitting the
// wrong FORM all along. That would be the win.
int main() { return 0; }