Code:
1,John,MI,4589,M
2,Lilly,FL,589,F
3,Richard,CA,2212,M
4,Cruse,VA,2222,M
5a,Taylor,,5888,M
6,Merry,TX,6969,F
7,,CO,5656,F
8,Tom,AL,5555,M
9,Sam,FL,2586,M
10,8888,OK,456
11,George11,MI,5555,M
12,Reet,MI,4589,M
13,8888a,FL,5899,F
14,Meera,NY,2546,F
15,Madav,,4454,M