challenge_the_wedding

count_man = int(input())
count_women = int(input())
max_tables = int(input())
list_couples = []
check_tables = False
# Комбинациите са с максимален размер, брой маси
for man in range(1, count_man + 1):
    for woman in range(1, count_women + 1):
        list_couples.append(str(man) + ' <-> ' + str(woman))
        if len(list_couples) == max_tables:
            check_tables = True
            break
    if check_tables:
        break
for couples in list_couples:
    print(f"({couples})", end=' ')