I tried lots of combinations but could not find a solution. Each number has to be used exactly once, the allowed mathematical operators are
- Addition: +
- Subtraction: -
- Negation: (unary prefix) -
- Multiplication: *
- Division: /
- Grouping with parentheses: ( )
All other operations (including the often implicitly accepted "concatenating initial digits to create a multi-digit number") are disallowed.