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(',')]


class FishState:
    all_fish: List[int]
    new_fish: int


def nextGeneration(all_fish: List[int]):
    num_new = functools.reduce(lambda new, fish: new if fish > 0 else new + 1, all_fish, 0)
    age_fish = list(map(lambda fish: fish - 1 if fish > 0 else 6, all_fish))
    return age_fish + [8] * num_new

#print(len(functools.reduce(lambda state, _: nextGeneration(state), range(0, 80), fish)))

print(len(functools.reduce(lambda state, _: nextGeneration(state), range(0, 80), fish)))