Gram staining sequence is
Primary stain – Crystal violet or Methyl violet 
Mordant – Gram's iodine
Decolorizer – Acetone or Ethanol
Secondary stain – Safranin or Carbol fuchsin
Carbol fuchsin – Iodine – Acetone – Methyl violet
Methyl violet  –  Iodine – Acetone – Carbol fuchsin
Methyl violet – Acetone – Iodine – Carbol fuchsin
Carbol fuchsin – Acetone – Iodine – Methyl violet