You are given nonnegative integers a and b (a ≤ b), and a positive integer x. Among the integers between a and b, inclusive, how many are divisible by x?
a,b,x = map(int,input().split())
print((b-a+1)// x) 
a,b,x = map(int,input().split())
print((b+x)//x - (a-1+x)//x )
