It looks like your query was cut off, but you might be looking for information regarding the Form I-94 (Arrival/Departure Record) issued by U.S. Customs and Border Protection (CBP).
The Official CBP I-94 Website is where international visitors can retrieve their electronic travel history and proof of legal status. Essential I-94 Information
Purpose: It serves as official proof of legal entry into the United States, dictating your visa status and how long you are allowed to stay.
Retrieval: You can access and print your most recent record by entering your passport number, name, and date of birth on the official site.
Errors: If your “Admit Until Date” or visa class is wrong, you must contact a CBP deferred inspection office to get it corrected.
If you were searching for something else—such as the country calling code for Sri Lanka (+94) or a specific math problem—please reply with the rest of your question so I can give you the exact details you need!