declaration terminated incorrectly... what could be the problem?

[Alexa Author]

Hi! I'm new in turbo C... and I'm trying to make a Program to calculate the product of two numbers.
please help me! I'm using Turbo C v3.0

this error occured:
25:Declaration terminated incorrectly

#include<stdio.h> 
                                                            
int a, b, c;                                                                 
int product (int x, int y);                                                   
                                                                            
main()                                                                        
{                                                                            
//input first number                                                          
printf("enter a number between 1 and 100: ");                               
scanf("%d", &a);                                                                                                              
                   
//input second number                                                         
printf("enter another number between 1 and 100: ");                           
scanf("%d", &b);                                                              
                                                                             
c = product(a, b);                                                            
                                                                            
printf ("%d times %d = %d\n", a, b, c);                                   
                                                                             
return 0;
}                                                        
                     
int product( int x, int y);                                                   
                                                                              
{                                                                             
return (x * y);                                                               
}

[Rabbit]

Remove the semicolon in the function declaration.