# --- Directions
# Print out the n-th entry in the fibonacci series.
# The fibonacci series is an ordering of numbers where
# each number is the sum of the preceeding two.
# For example, the sequence
#  [0, 1, 1, 2, 3, 5, 8, 13, 21, 34]
# forms the first ten entries of the fibonacci series.
# Example:
#   fib(4) === 3

def fib(n):
    # Your code here
    return 


def main():
    print("Fibonacci Series")
    number = int(input("Input a  number:"))
    print(fib(number))
     
main()