def fibonaccir(x):
    if x == 0 or x == 1:
        return 1
    else:
        ans = fibonacci(x-1) + fibonacci(x-2)
        return ans

def fibonacci(x):
    if x == 0 or x == 1:
        return 1
    else:
        n1 = 0
        n2 = 1
        for i in range(x):
            ans = n1 + n2
        return ans


print(fibonacci(99))