unity – Error CS1585: Member modifier ‘public’ should precede the member sort and title

I acquired the error CS1585 I used to be writing the code for the motion of the participant

utilizing System.Collections;
utilizing System.Collections.Generic;
utilizing UnityEngine;

public class participant : MonoBehaviour
{
        public float pace;
    public float jampForce;
    public float moveInput;

    non-public Rigidbody2D

    non-public void Begin()
    {
        rb = GetComponent<Rigidbody2D>()
    }

    non-public void FixedUpdate()
    {
        moveInput = Enter.GetAxis("Horizontal");
        rb.velocity = new Vector2(moveInput * pace, rb.velocity.y);
    }
}