text: a = int(input("Enter the electricity unit charges:"))
  b,c = 0,0
  if a <= 50:
      b = a*0.5
  elif a <= 150:
      b = a*0.75
  elif a <= 250:
      b = a*1.2
  else:
      b = a*1.5
  
  print("The total electricity bill is Rs.",b+(b*0.20))
  