<p>
Generate the first four lex orders in 1234
</p>
1234 &nbsp &nbsp
1243 &nbsp &nbsp
1324 &nbsp &nbsp
1342 &nbsp &nbsp
1423 &nbsp &nbsp
1432 <br>
2134 &nbsp &nbsp
2143 &nbsp &nbsp
2314 &nbsp &nbsp
2341 &nbsp &nbsp
2413 &nbsp &nbsp
2431 <br>
3124 &nbsp &nbsp
3142 &nbsp &nbsp
3214 &nbsp &nbsp
3241 &nbsp &nbsp
3412 &nbsp &nbsp
3421 <br>
4123 &nbsp &nbsp
4132 &nbsp &nbsp
4213 &nbsp &nbsp
4231 &nbsp &nbsp
4312 &nbsp &nbsp
4321 <br>
</p>