import sys

sys.stdout.reconfigure(encoding="utf-8", newline="\n")
sys.stdin.reconfigure(encoding="utf-8")

print("Expert zo zoo to vie.")

data = sys.stdin.read()
lines = data.split("\n")
if lines and lines[-1] == "":
    lines.pop()

if "" not in lines:
    print("Chybna databaza")
    sys.exit()

sep = lines.index("")
base = lines[:sep]
choices = lines[sep + 1:]

print("Pocet otazok: 0")
print("Pocet odpovedi: 1")
print("Odpovedajte 'a' pre prvu moznost alebo 'n' pre druhu moznost.")
print(base[0])
print("Koniec")