It is still unproven that whether an even integer n can be the sum of tow odd prime numbers.

Example:

14 = 3 + 11.

22 = 3 + 19 = 5 + 17 = 11 + 11.

The input will contain one or more test cases.

Each test case consists of one even integer n (6 <= n <= 1000000).

Input will be terminated by a value of 0 for n.

For each test case, you should print one line:

n = a + b, where a and b are odd primes.

If there is more than one pair of a and b adding up to n,

output the pair where b - a is maxmized. If there is no such pair, print a 

line saying "No answer".

14
22
0

14 = 3 + 11
22 = 3 + 19