import argparse
from typing import List, Set, NamedTuple
import functools

parser = argparse.ArgumentParser()
parser.add_argument("ifile", type=argparse.FileType('r'))
args = parser.parse_args()
fish = [int(x) for x in args.ifile.readline().split(',')]

new_fish_per_day = [0] * (256)

for f in fish:
    for index in range(f, len(new_fish_per_day), 7):
        new_fish_per_day[index] += 1

for index, num_new_fish in enumerate(new_fish_per_day):
    for i in range(index + 1 + 8, len(new_fish_per_day), 7):
        new_fish_per_day[i] += num_new_fish

print(sum(new_fish_per_day) + len(fish))