Hackrank test case:
将输入字符串数组 1st Oct 2016
20th Oct 2052
6th Jun 1933
26th May 1960
20th Sep 1958
16th Mar 2068
25th May 1912
16th Dec 2018
26th Dec 2061
4th Nov 2030
28th Jul 1963
转换格式成如下字符串数组
2052-10-20
1933-06-06
1960-05-26
1958-09-20
2068-03-16
1912-05-25
2018-12-16
2061-12-26
2030-11-04
1963-07-28
