Python #1

Problem Tasks

# Date State
Not Contest

# Date State

B. Juft sonlar

Time limit : 1000 ms
Memory limit : 128 mb

Ikkita son berilgan. Shu sonlardan nechtasi juft son ekanligini hisoblang.


Kiruvchi ma’lumotlar

Birinchi qatorda 2 ta natural son $a, b(1 \le a, b \le 1000)$.


Chiquvchi ma’lumotlar

Yagona qatorda masala yechimini chiqaring.


Input
2 3
Output
1
Input
3 5
Output
0
Input
4 2
Output
2