VERY stupid question....your old enough to use some common sense and look around for your answer....go to SEALSWCC.com...look at top...requirements....
please just use the search button and find your answer next time..unless you don't find an answer that suites your question, that is when you should make a new thread..
"What this power is, I cannot say. All I know is that it exists...and it becomes available only when you are in that state of mind in which you know exactly what you want...and are fully determined not to quit until you get it." - Graham Bell
"Most people who fail in their dream fail not from lack of ability but from lack of commitment"