==> is array () /29 ==> [] /31 ==> [] /21 ==> [] /0 ==> [] /26 ==> [] /27 ==> [] /12 ==> [] /6 ==> [] /9 ==> [] /3 ==> [] /14 ==> [] /24 ==> [] /20 ==> [] /8 ==> [] /13 ==> [] /11 ==> [] /19 ==> [] /5 ==> [] /17 ==> [] /16 ==> [] /10 ==> [] /22 ==> [] /7 ==> [] /4 ==> [] /23 ==> [] /25 ==> [] /2 ==> [] /18 ==> [] /1 ==> [] /28 ==> [] /30 ==> []