import time
infile = open('advent_2020_01_input.txt','r')

perm_storage = []
t0 = time.perf_counter()

# Part 1
for x in infile:
    perm_storage.append(int(x))

nums = perm_storage.copy()
while nums:
    for num1 in nums:
        if (num1+nums[0] == 2020):
            print(num1*nums[0])
    nums.pop(0)

print('Time: {}'.format(time.perf_counter()-t0))
t0 = time.perf_counter()

# Part 2

nums = perm_storage.copy()

while nums:
    nums2 = nums.copy()
    while nums2:
        for num in nums2:
            if (num+nums[0]+nums2[0] == 2020):
                print(num*nums[0]*nums2[0])
        nums2.pop(0)
    nums.pop(0)

print('Time: {}'.format(time.perf_counter()-t0))
t0 = time.perf_counter()

print("Old Way")

infile_x = open('advent_2020_01_input.txt','r')

# Part 1
for x in infile_x:
    infile_y = open('advent_2020_01_input.txt','r')
    for y in infile_y:
        if (int(x)+int(y) == 2020):
            print(int(x)*int(y))

print('Time: {}'.format(time.perf_counter()-t0))
t0 = time.perf_counter()

infile_x = open('advent_2020_01_input.txt','r')

# Part 2
for x in infile_x:
    infile_y = open('advent_2020_01_input.txt','r')
    for y in infile_y:
        infile_z = open('advent_2020_01_input.txt','r')
        for z in infile_z:
            if (int(x)+int(y)+int(z) == 2020):
                print(int(x)*int(y)*int(z))
                
print('Time: {}'.format(time.perf_counter()-t0))