Task #0389

Memory 16 MB Time 1000 ms Complexity 13 %

IP Adres

Internet va lokal tarmog'idagi qurilmalar bir-biri bilan IP protokoli orqali bir-birini IP adreslariga ma'lumot junatish orqali aloqa qilishadi. IP adresda 4ta son nuqlatar bilan bo’lingan bo’ladi va sonlar qiymati 255dan oshmaydi. Misol uchun:

127.0.0.0
192.168.0.01
255.000.255.0255

Sizning vazifangiz berilgan IP adres to'g'riligini aniqlashdan iborat

Input:

Kirish faylida bitta qatorda nuqtalar bilan bo’lingan 4ta son beriladi, va sonlarning qiymati 10⁶ dan oshmaydi.

Output:

Agar kiritilgan ma’lumot IP adres bo’la olsa “YES”, aks holda “NO” so’zlarini chop eting.

Examples

#	input.txt	output.txt
1	192.168.0.01	YES
2	098.1342.23.31	NO

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