#!/bin/python3
import sys,re
from pprint import pprint
sys.path.insert(0, '../../')
from fred import list2int

input_f = 'input'

part = 2
#########################################
#                                       #
#              Part 1                   #
#                                       #
#########################################

if part == 1:
    count = 0
    with open(input_f) as file:
        for line in file:
            count += int(line.rstrip())
    print(count)


#########################################
#                                       #
#              Part 2                   #
#                                       #
#########################################
if part == 2:
    count = 0
    instructions = []
    with open(input_f) as file:
        for line in file:
            instructions.append(int(line.rstrip()))
    
    index = 0
    duplicates = []
    while True:
        count += instructions[index]
        index += 1
        if count in duplicates:
            print(count)
            break
        duplicates.append(count)
        if index == len(instructions):
            index = 0