import pp


def main():

    NUM = 20
    i = NUM

    while 1:
        good = True
        for n in range(NUM/2, NUM+1):
            if i % n != 0:
                good = False
                break
        if good:
            return i
        i += NUM

if __name__ == '__main__':
    server = pp.Server(2)
    result = server.submit(main)
    print result()