In the morning, farmer John does a count of all of the animals in his pen. His pens consist of only cows and chickens. For those of you who don't know, a cow has 4 legs, and a chicken has 2 legs.

John counts ~H~ heads and ~L~ legs total. Determine the number of cows and chickens.

Subtasks

~1 \leq H,L \leq 10^9~

Subtask 1 [30%]

~1 \leq H,L \leq 10^3~

Subtask 2 [70%]

No further subtasks.

Input Specifications

The first and only line will contain space-separated integers ~H~ and ~L~.

Output Specifications

One one line, output the number of cows in the pens, followed by the number of chickens. It is guaranteed that there is an integer solution.

Sample Input

9 28

Sample Output

5 4

Explanation for Sample Output

With 5 cows and 4 chickens, there are ~5 \times 4 + 4 \times 2 = 28~ legs in total.