spoj#POP1. play with prime numbers (I)
play with prime numbers (I)
A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself .
we define here a new prime number called prime of primes number (POP) is a prime number that consist of other prime numbers less than this number .
example :
1013 consist of 101 and 3 and both are primes .
notes :
2003 is not POP because leading zero not allowed .
the POP number must contain more than or equal two primes , and overlapping not allowed .
Input
The first line contains an integer T specifying the number of test cases. (T <= 10^4) followed by
T lines , each line contains an integer m number 0<=m<=10^9 .
Output
For each test case print single line contain the first integer greater than or equal to m and is (POP) .
Example
Input:
3
10
100
1000
Output:
23
113
1013
after solving this you can try http://www.spoj.com/problems/POP2/