1.first(1st)
2.second(2nd)
3.third(3rd)
4.fourth(4th)
5.fifth(5th)
6.sixth(6th)
7.seventh(7th)
8.eighth(8th)
9.ninth(9th)
10.tenth(10th)
11.eleventh(11th)
12.twelfth(12th)
13.thirteenth(13th)
14.fourteenth(14th)
15.fifteenth(15th)
16.sixteenth(16th)
17.seventeenth(17th)
18.eighteenth(18th)
19.nineteenth(19th)
20.twentieth(20th)
