Problems
Reset a bit
Reset a bit
Given two integers a and k. Find the number that is obtained from a by reseting the value of k-th bit to 0. The least significant bit has number 0.
Input
Two numbers a and k (0 ≤ a ≤ 109
).
Output
Print the number with reset k-th bit.
Input example #1
5 1
Output example #1
5