Рождение теоремы Ферма - Задачи

I have some problems for this problem . I think my program is true but there is 1 accepted test . Other tests are Wrong Answer and Runtime error . But i dont understand . help please

avalizade

L and U can be negative? If yes what is this meaning?

LIM17 ответил:

Yes

eR6ik

Может ли тест -1 -1 быть не в последней строке?