In a conference 10 speakers are present. If `S_1` wants to speak before `S_2a n dS_2` wants to speak after `S_3,` then find the number of ways all the 10 speakers can give their speeches with the above restriction if the remaining seven speakers have no objection to speak at any number.

Explanation

To solve the problem of arranging 10 speakers with the given restrictions, we can follow these steps:

### Step 1: Understand the Restrictions
We have 10 speakers: S1, S2, S3, and 7 others. The restrictions are:
- S1 must speak before S2.
- S2 must speak after S3.

### Step 2: Total Arrangements Without Restrictions
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