Masala #VLAINDD12O

Xotira 16 MB Vaqt 100 ms Qiyinchiligi 10 %

Kamyob son

Sizga bitta N soni beriladi siz esa bu kamyob son yoki kamyob son emasligini isbotlang kamyob son deb : N sonning kvadrati va ikkilanganini ayirmasi 0 ga teng bo'lsa kamyob son deb ataladi.

Kiruvchi ma'lumotlar:

Kirish faylining yagona satrida N soni kiritiladi \((1 \le N \le10^{12})\)

Chiquvchi ma'lumotlar:

Agar son kamyob son bo'lsa "YES" deb aks holda "NO" deb chop eting

Misollar

#	input.txt	output.txt
1	1	NO
2	2	YES

Izoh:

1-test :

1**2-(1+1) != 0

2-test:

2**2-(2+2) == 0

O'ylab ko'ring masala oson.

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