public static void Day1()
{
var list = new[] { 261, 1773, 1839, 1551, 1781, 1276, 1372, 1668, 1823, 1870, 1672, 1821, 1327, 1902, 1949, 1389, 1720, 1437, 1716, 1360, 1893, 1410, 1881, 1927, 1639, 1514,
1753, 1625, 1249, 1696, 1698, 1699, 2004, 1742, 1903, 473, 1948, 1830, 1973, 2005, 1468, 1824, 1809, 1493, 2009, 1848, 1306, 1519, 1618, 1905, 1402, 1705, 1910, 1609, 1571,
1557, 1420, 608, 1471, 1383, 1442, 1447, 1985, 1486, 1629, 1450, 1767, 1407, 1626, 1623, 1467, 1224, 1269, 1325, 1674, 1945, 1733, 1913, 1451, 1853, 1875, 405, 1500, 1634,
1570, 1868, 1510, 1069, 1296, 1852, 1287, 1274, 832, 1373, 1142, 1838, 1854, 1480, 1628, 1632, 1597, 1761, 1717, 1684, 1956, 1351, 1622, 1941, 1704, 1926, 1873, 1393, 1850,
1898, 1960, 1673, 1736, 1901, 1806, 1768, 1670, 1989, 1214, 1851, 1715, 1461, 1277, 951, 1482, 1464, 1883, 1976, 1602, 1606, 1258, 1801, 1593, 1332, 1386, 1309, 1388, 1762,
1533, 1805, 1462, 375, 1555, 1357, 1578, 1552, 1473, 1834, 1262, 1466, 1925, 1955, 1575, 1975, 1964, 1440, 1667, 1922, 1454, 1813, 1968, 1836, 1982, 1326, 1811, 900, 1588,
1529, 1997, 1345, 1859, 1458, 1764, 1509, 1397, 1237, 1627, 1564, 1814, 1842, 1679, 1289, 1957, 1819, 801, 1350, 1841, 1803, 1718, 1966, 1272, 1636, 1352, 1496, 1455, 1488 };
// Day 1 Part 1
Console.WriteLine(Accounting.GetProduct2020ForTwo(list));
// Day 2 Part 2
Console.WriteLine(Accounting.GetProduct2020ForThree(list));
}