Python #1

Problem Tasks

# Date State
Not Contest

# Date State

D. Kvadrat sonlar

Time limit : 1000 ms
Memory limit : 128 mb

Sizga ikkita son berilgan. Shu ikkita son oralig'ida nechta kvadrat son borligini hisoblang.


Kiruvchi ma’lumotlar

Birinchi qatorda 2 ta natural son $n(1 \le a \le b \le 10^9)$.


Chiquvchi ma’lumotlar

Yagona qatorda masala yechimini chiqaring.


Input
1 5
Output
2
Input
5 26
Output
3
Input
30 31
Output
0