make even negative sign not allow any type

src/negative.go

@@ -6,6 +6,7 @@ var negativeCompile = makeRegex(`( *)-(.|\n)+( *)`)
 
 type negative struct {
 	VAL  any
+	sign bool
 	line int
 	code string
 	path string
@@ -26,11 +27,9 @@ func parseNegative(code UNPARSEcode, index int, codeline []UNPARSEcode) (any, bo
 		path:     code.path,
 	}, index, codeline, 0)
 
-	if difference%2 == 0 {
-		return resp, worked, err, i
-	}
 	return negative{
 		VAL:  resp,
+		sign: difference%2 == 0,
 		line: code.line,
 		code: code.realcode,
 		path: code.path,

src/run.go

@@ -70,8 +70,11 @@ func runVal(line any, stack stack, stacklevel int) (any, ArErr) {
 		}
 		switch y := resp.(type) {
 		case number:
+			if !x.sign {
 				return newNumber().Neg(y), ArErr{}
 			}
+			return y, ArErr{}
+		}
 		return nil, ArErr{
 			TYPE:    "TypeError",
 			message: "cannot negate a non-number",