Write a regular expression that matches numbers whose digits are not repeated (i.e. digits are distinct).

Examples

pattern = "yourregularexpressionhere"

bool(re.match(pattern, "123")) ➞ True

bool(re.match(pattern, "112233")) ➞ False

bool(re.match(pattern, "1025")) ➞ True

Notes

• You don't need to write a function, just the pattern.
• Input is a number as a string.
• Find more info on RegEx in Resources.
• You can find all the challenges of this series here.