implement Sample;include "sys.m";	sys: Sys; Sample: module{	init: fn();}; init(){	sys = load Sys Sys->PATH;	z := array[20] of {0 or 2 or 4 or 6 or 8 => 1,			1 or 3 or 5 or 7 or 9 => 0,			* => -1			}; 	sys->print("should print -1 result %d\n", z[11]);}