Other contributors have said "How big is califonia from the top to the botm?" is the same question as "How big is Califonia from the top to the bottom?" If you believe that these are not asking the same thing and should be answered differently, click here
It means (most likely) that you have Dyslexia. Dyslexia is a disease that a person is born with and often times the words are jumbled up when you read something or they could be backwards