Given the following code, what is the output?

def main() :
   x = 20
   z = mystery2(x)
   print(z + x)

def mystery1(x) :
   w = 0
   while w * w < x :
      w += 1
   return w + 2

def mystery2(a) :
   z = 0
   for y in range(a) :
      x = mystery1(y)
      z = z + x
   return z

main()