Fix non-numeric literals

slither/core/expressions/literal.py

@@ -1,6 +1,7 @@
 from typing import Optional, Union, TYPE_CHECKING
 
 from slither.core.expressions.expression import Expression
+from slither.core.solidity_types.elementary_type import Byte, Fixed, Int, Ufixed, Uint
 from slither.utils.arithmetic import convert_subdenomination
 from slither.utils.integer_conversion import convert_string_to_int
 
@@ -30,7 +31,11 @@ class Literal(Expression):
     def __str__(self):
         if self.subdenomination:
             return str(convert_subdenomination(self._value, self.subdenomination))
-        return str(convert_string_to_int(self._value))
+        elif self.type in Int + Uint + Fixed + Ufixed + ["address"]:
+            return str(convert_string_to_int(self._value))
+
+        # be sure to handle any character
+        return str(self._value)
 
     def __eq__(self, other):
         if not isinstance(other, Literal):