def surfacearea_cylinder(r,h):
  
  surfacearea=((2*3.1415*r*r) +(2*3.1415*r*h))
  return surfacearea
def is_not_prime(n):
    import math
    
    result = False
    for i in range(2,int(math.sqrt(n)) + 1):
        if n % i == 0:
            result = True
    return result