def main():
    from math import sqrt
    print (str(round(2*(3/4)+4*(2/3)-3*(1/5)+5*(1/2),4)))
    print (str(round((2*35+4*sqrt(36**3)-6*49),4)))
    print (str(round((4**3+2*5**2)/(4*4),4)))
    print (str(round((2*(4+5)**2+4*(4-5)**2)/(4*5**2),4)))
    print (str(round((sqrt((4+5)**2+2**(4+5))/(2*4+2*5)**2),4)))




if __name__ == '__main__':
    main()
