Help Ishaan
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Ishaan has been given a task by his teacher. He needs to find the Nth term of a series. His teacher gives him some examples to help him out (Refer examples below). He is a bit weak in pattern searching so to help him his teacher told him that the Nth term is related to prime numbers. The Nth term is the difference of N and the closest prime number to N. Help him find the Nth term for a given N.

Input : 
The first line of input contains a single integer T denoting the number of test cases. Each test case contains an integer N.

Output : 
For each test case, print the required answer in a new line.

Constraints : 
1 <= T <= 200
1 <= N <= 10^6
Note : Constraints are high. Brute Force wont work.

Example : 
Input : 

6
1
2
3
10
15
26
Output : 
1
0
0
1
2
3

Explanation :

Closest prime to 1 is 2. Difference = 2-1 = 1

Closest prime to 2 is 2. Difference = 2-2 = 0

Closest prime to 3 is 3. Difference = 3-3 = 0

Closest prime to 10 is 11. Difference = 11-10 = 1

Closest prime to 15 is 13. Difference = 15-13 = 2

Closest prime to 26 is 23. Difference = 26-23 = 3

** For More Input/Output Examples Use 'Expected Output' option **

Author: goyalanubhav11


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