from time import clock
if __name__ == "__main__":
    import sys
    print("args=", sys.argv)
    x="from " + sys.argv[1] + " import main"
    print(x)
    exec x
    tstart=clock()*1000
    answer=main()
    tend=clock()*1000
    print("answer=", answer)
    print("tstart=", "%e" % tstart, "tend=", "%e" % tend)
    print("runtime(CPU milliseconds)=", str(tend-tstart))