from sys import stdin


def count_seven(arr: list) -> int:
    counter = 0

    for num in arr:
        if num % 7 == 0:
            counter += 1

    return counter

d = {}

for line in stdin:
    line = list(map(int, line.split()))
    if count_seven(line) not in d.keys():
        d[count_seven(line)] = list(map(str, list(filter(lambda x: x % 7 == 0, line))))

print(", ".join(d[max(d.keys())]))