# chain-q8
# Section 17, Q.8, p.67, p.259-260
# input:  1000000 or 10000000 or 100000000 (python crashes when using recursive prime)

import sys
from prime import *

# print(sys.getrecursionlimit())
sys.setrecursionlimit(10000)  # needed for 10000000
max = int(input("max=? "))
p = max-1
while True:
  p += 2
  if isPrime(p) and isPrime(p+p+1):
    break
print(p, p+p+1)