from random import randint
count, teams, ans = map(int, input('Введите количество игроков, количество команд, и "1", если нужны имена;"0", если имена не нужны.\n').split())
if ans == 1:
    players = []


    for i in range(count):
        players.append(input())


    a = []
    for i in range(teams):
        a.append([])


    for i in range(len(players)):
        a[i % teams].append(players.pop(randint(0,len(players) - 1)))


    for i in a:
        print(*i)

else:
    players = [i for i in range(1,count + 1)]


    a = []
    for i in range(teams):
        a.append([])


    for i in range(len(players)):
        a[i % teams].append(players.pop(randint(0,len(players) - 1)))


    for i in a:
        print(*i)