PROGRAMMING:Invertible prime
Please output all 4-digit reversible primes from small to large. Reversible prime number refers to: a prime number reverses the order of its digits to form an inverse ordinal number, which is also a prime number.
###Input format:
nothing
###Output format:
Output reversible prime numbers with space interval in a line, and there is no space at the end of the line. There are no extra spaces and line breaks at the end of the line
###Input example:
```in
nothing
```
###Output example:
```out
nothing
```
answer：If there is no answer, please comment
###Input format:
nothing
###Output format:
Output reversible prime numbers with space interval in a line, and there is no space at the end of the line. There are no extra spaces and line breaks at the end of the line
###Input example:
```in
nothing
```
###Output example:
```out
nothing
```
answer：If there is no answer, please comment