def surfacearea_cylinder(r,h):
  
  surfacearea=((2*3.1415*r*r) +(2*3.1415*r*h))
  return surfacearea
def surfacearea_cylinder(b, h):
   
    surfacearea = (2 * 3.1415 * b * b) + (2 * 3.1415 * b * h)
    return surfacearea