Question 1189686
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As worded, printed, posted and presented, this post is incomplete.


It missed some essential part of information, and in this form the problem can not be solved.


As I understand, you heard somewhere about this class of problems and try to invent / (to compose) on your own, 

but have no enough knowledge to do it correctly.



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At this forum,  I teach how to solve problems,  but  I  DO  NOT  TEACH  how to create them - - - 


- - - because skills to compose require,  as a pre-requisite,  knowledge on solving problems,  which you do not have.



It is the same as in music :  you can not compose for piano,  if you can not play piano . . .