# TopCoder

FHVirus
$\huge{WHP}$

100.0% (75/75)

62.7% (96/153)

10
20
2

# Sample Output

primes between 1 ~ 10: 2 3 5 7
primes between 1 ~ 20: 2 3 5 7 11 13 17 19
primes between 1 ~ 2: 2