## Task 1

```
--- Day 1: Report Repair ---
After saving Christmas five years in a row, you've decided to take a vacation at a nice resort on a tropical island. Surely, Christmas will go on without you.
The tropical island has its own currency and is entirely cash-only. The gold coins used there have a little picture of a starfish; the locals just call them stars. None of the currency exchanges seem to have heard of them, but somehow, you'll need to find fifty of these coins by the time you arrive so you can pay the deposit on your room.
To save your vacation, you need to get all fifty stars by December 25th.
Collect stars by solving puzzles. Two puzzles will be made available on each day in the Advent calendar; the second puzzle is unlocked when you complete the first. Each puzzle grants one star. Good luck!
Before you leave, the Elves in accounting just need you to fix your expense report (your puzzle input); apparently, something isn't quite adding up.
Specifically, they need you to find the two entries that sum to 2020 and then multiply those two numbers together.
For example, suppose your expense report contained the following:
1721
979
366
299
675
1456
In this list, the two entries that sum to 2020 are 1721 and 299. Multiplying them together produces 1721 * 299 = 514579, so the correct answer is 514579.
Of course, your expense report is much larger. Find the two entries that sum to 2020; what do you get if you multiply them together?
```

```
with open("1-1.data") as f:
expenses = f.read().splitlines()
for expense1 in expenses:
for expense2 in expenses:
sum = int(expense1) + int(expense2);
if(sum == 2020):
print(expense1 + " + " + expense2 + " = 2020 ")
multiplied = int(expense1) * int(expense2);
print("Multiplied: " + str(multiplied))
```

**Answer: 982464**

## Task 2

```
The Elves in accounting are thankful for your help; one of them even offers you a starfish coin they had left over from a past vacation. They offer you a second one if you can find three numbers in your expense report that meet the same criteria.
Using the above example again, the three entries that sum to 2020 are 979, 366, and 675. Multiplying them together produces the answer, 241861950.
In your expense report, what is the product of the three entries that sum to 2020?
```

```
with open("1-1.data") as f:
expenses = f.read().splitlines()
for expense1 in expenses:
for expense2 in expenses:
for expense3 in expenses:
sum = int(expense1) + int(expense2) + int(expense3);
if(sum == 2020):
print(expense1 + " + " + expense2 + " + " + expense3 + " = 2020 ")
multiplied = int(expense1) * int(expense2) * int(expense3);
print("Multiplied: " + str(multiplied))
```

**Answer: 162292410**

## Data

```
1864
1880
1300
1961
1577
1900
1307
1818
1736
1846
1417
1372
1351
1860
1738
1525
1798
1218
1723
1936
1725
1998
1466
1922
1782
1947
1717
1914
1843
1732
1918
814
1771
1712
1804
1213
1859
1820
1793
1870
1993
1787
1824
1849
1646
1489
1348
1978
1628
1781
2002
1297
1829
1596
1819
1313
1413
1726
1449
1810
1295
1679
1358
1949
1644
1825
1891
490
1962
1939
1228
1889
1977
1980
1763
1752
1983
1785
1678
2000
1857
1658
1863
1330
1380
1799
1789
1633
1663
296
1985
1117
1239
1854
1960
2004
1940
1876
1739
1858
1283
1423
1982
1836
1451
1840
1347
1652
1695
1210
1861
1199
1346
1786
1814
1958
1853
1974
1917
1308
654
1743
1847
1367
1559
1614
1897
2003
1886
1885
1682
1204
1986
1816
1994
1817
1751
1701
1619
1970
816
1852
1832
1631
703
1604
1444
1842
1984
1259
1948
1620
1681
1822
1865
1521
1741
1455
1909
1764
261
1464
1905
1325
1766
1749
1292
1874
1267
1269
1969
1991
1219
1345
1976
1369
1942
1388
1776
1629
1987
1684
1813
1203
1965
1729
1930
1609
1801
1402
121
1833
1898
1957
1051
1430
1893
1784
1800
1910
```