Give Russian equivalent of grades

• Объекты 1
  • > 80% \(excellent\) - A
  • > 70% \(very good\) - B
  • > 60% \(improvement needed\) - C
  • > 50% \(close fail\) - D
  • > 40% \(fail\) - E
  • < 40% \(fail\) - F
• Объекты 2
  • 5
  • 4
  • 3
  • 3
  • 2
  • 1