#!/usr/bin/python3
import time


def main():
    time.sleep(2)
    F = 1.00e00
    E = 3.00e04
    L = 5.00e00
    II = 1.10e-03
    dev = F * L**3 / (3 * E * II)
    with open("beam_output.txt", "w") as f:
        f.write("deviation=" + str(dev) + "\n")
    return dev


if __name__ == "__main__":
    main()