mn = mx = 0

for _ in range(int(input())):
  l = input()
  mx += int(l.replace('0','D').replace('8','B'), 16)
  l = l.replace('D','0').replace('B','8')
  if l[0] == '0' and len(l) > 1: l = l.replace('0','D',1)
  mn += int(l, 16)

print(hex(mx)[2:].upper(),hex(mn)[2:].upper(),sep="\n")