1. The problem is that the input only allows one digit per box. 2. This is a user interface or form input limitation, not a math problem. 3. To solve this, you might need to enter digits one at a time or check if the input fields are designed to accept only single digits. 4. If you want to input a multi-digit number, try entering digits in consecutive boxes or look for a different input method. 5. This is a technical or UI issue rather than a mathematical one, so no math formula applies here.