| or flat

#!/usr/bin/env raku
use v6.d;
## let get the right result
say "\e[0;32m just one listt\e[0m";
say ([+](1,2,3,5,6,7)).fmt("[+](1,2,3,5,6,7) is %s");

say "\e[0;32m testing just flat\e[0m";
say [+]((1..3,(5..7)).flat);
say [+]((1...3,(5...7)).flat); #6
say [+]((1..3,(5...7)).flat);
say [+]((1...3,(5..7)).flat);

say "\e[0;32m testing with just |\e[0m";
say [+]((1..3,|(5..7))); #24
say [+]((1...3,|(5...7))); #6
say [+]((1..3,|(5...7)));
say [+]((1...3,|(5..7)));

say "\e[0;32m testing with | and flat\e[0m";
say [+]((1..3,|(5..7))).flat; #24
say [+]((1...3,|(5...7))).flat; #6
say [+]((1..3,|(5...7))).flat;
say [+]((1...3,|(5..7))).flat;