# 1402.py

def mediana (*a):
  a=list(a); a.sort(); n=len(a)
  if n%2: return a[n/2]
  return 0.5*(a[n/2-1]+a[n/2])

print mediana(3,2,1,6,4,8,5)
# 4
# Invece:
print mediana(*[3,2,1,6,4,8,5])
# 4