C Pronramnig Define a sequence of integers, Fib3 as follows: Fib3 (1)Fib3 (2)Fib3 (3)1, F1D3 (n) Fib3(n-1) + Fib3(n-2) + Fib3(n-3) for n93 Write the definition of a function that takes a an integer, n, as its argument and returns the value of Fib3(n). You can assume that the value of the argument is greater than 3