def lim(f):
    """Finds the limit of a given sequence."""
    previous = f(1)
    i = 1
    while True:
        current = f(2**i)
        difference = abs(current - previous)

        # If the absolute difference is less than the tolerance, assumes it has
        # converged to the current value.
        if difference < 1e-6:
            return current

        previous = current
        i += 1


e = lim(lambda n: (1 + 1/n)**n)
print(f"{e:.5f}")