You are given a function

int isPrime(int n);
which checks if n is prime or not.

Write a function that prints prime numbers from a to b (included).


function name: printPrimeNumbers
parameters: two integers a, b (2 <= a <= b <= 106).
return type: none

print prime numbers between a and b in one line, separated by a space.


Input is always valid.
See examples for more details in input/output.