a := [1, 2, 3]; b := [1, 2, 3]; c := [2, 3, 4]; d := [1, 2, 3, 4]; e := ['1', '2', '3']; f := [[['1']]]; g := [[[1]]]; h := [[1, 2], 3]; i := [['1', 2], '3']; j := [1]; k := ['1']; l := []; m := 42; n := [0,1]; a == b & a === b & a != c & b != d & a == e & a !== e & f == g & f !== g & h == i & h !== i & e != i & j != 1 & k != '1' & l == false & l == null & l !== false & l !== null & false == l & null == l & false !== l & null !== l & b[5**2/((4+1)*5)] == a[43-m] & a[n[0]] === b[n[m-42]]