Find Integer

people in USSS love math very much, and there is a famous math problem .

give you two integers $n$,$a$,you are required to find $2$ integers $b$,$c$ such that $a^{n}$+$b^{n} = c^{n} $.

one line contains one integer $T$;$(1 \le T\le1000000)$

next $T$ lines contains two integers $n$,$a$;$(0 \le n \le1000$,$000$,$000,3 \le a \le 40000)$

print two integers $b$,$c$ if $b$,$c$ exits;$(1 \le b,c \le 1000$,$000$,$000)$;

else print two integers -1 -1 instead.

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2018中国大学生程序设计竞赛 - 网络选拔赛