This a trick question because 10 line programs are trivial. I mean, OP asked for a 10 line program showing something that can't be done easily in Rust and actu

This a trick question because 10 line programs are trivial. I mean, OP asked for a 10 line program showing something that can't be done easily in Rust and actually matters, so he seems to believe 10 line programs aren't trivial. That said line counts are an awful metric because I could just cram an entire library definition in a single line as if it were minified JS.