From the beginning, add 4 and 5 in turn to get the following column of numbers 1, 5, 10, 14, 19, 23 and 28. The number closest to 2009 in this column is ()

From the beginning, add 4 and 5 in turn to get the following column of numbers 1, 5, 10, 14, 19, 23 and 28. The number closest to 2009 in this column is ()

2008. Take 9 as a cycle, i.e. 1 as prime minister, followed by a sequence with 9 as equal difference, 2009-1 = 20082008 / 9 = 223 odd 1, so 223 × 9 + 1 = 2008 is one of its series, which is also the number closest to 2009