How to enter the number of Apple SMS messages greater than or equal to?

1. Open the "SMS" icon on the home screen.

2. Click the Edit SMS button in the upper right corner. ?

3. Type a name or phone number in the To field, or add one or more contacts from the address book. Then start entering information. There is a "123" in the lower left corner of the keyboard. Click "123" and it will appear. After clicking, the finger will not leave the key for a few seconds, and then four symbols will appear. Don't let go, slowly move to the left until the point is greater than or equal to the number, and then let go.