There is a new magician in town. His trick is known as "Find the Ring".

He puts 3 glasses at 3 spots on the table, labeling them as 0, 1 and 2. Now, he hides a ring under one of the glasses. The glasses are opaque and placed upside down, so that the ring is not visible to the audience.

Now, he begins to make certain swaps in between adjacent glasses, i.e. the glass at position 0 can be swapped with that at position 1, and the glass at position 2 can be swapped with glass at 1.

Assuming that all swaps are done randomly with equal probability of 50%, you have to find index of the glass that is most likely to have the ring, at the end. In case of a tie, choose the one with lower index.

Assume that the glass containing the ring was swapped exactly N times.

Input:

The first line contains an integer T, denoting the number of test cases. Each of the following T lines contain two space separated integers, index and N. index is index of glass that initially contains the ring and N is the total number of swaps involving the glass with ring.

Output:

For, each of the T test cases, output the corresponding answer in a new line.

Constraints:

1 <= T <= 100
0 <= index <= 2
0 <= N <= 10000