220222
One by Gotthold Eisenstein counts lattice point s. Another applies Zolotarev 's lemma to Z/pqZ expressed by the Chinese remainder theorem as Z/pZ × Z/qZ , and calculates the signature of a permutation .
 Gotthold Eisenstein
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Gotthold Eisenstein