This is my first good UNIQUE CGI program

method 1 
Result is 1
2
3
4
5
After 1 2 3 4 5 

method 2 
 $_  1
 $_  2
 $_  3
 $_  4
 $_  5

method 3 
 $_  1
 $_  2
 $_  3
 $_  4
 $_  5