var grade='A';
console.log("Entering switch block");

switch (grade)
{
  case 'A':
  console.log("Good job");
  break;

  case 'B':
  console.log("Pretty good");
  break;

  case 'C':
  console.log("Passed");
  break;

  case 'D':
  console.log("Not so good");
  break;

  case 'F': console.log("Failed");
  break;

  default:
  console.log("Unknown grade")
}

console.log("Exiting switch block");



switch (grade)
{
  case 'A':
  console.log("Good job");

  case 'B':
  console.log("Pretty good");

  case 'C':
  console.log("Passed");

  case 'D':
  console.log("Not so good");

  case 'F':
  console.log("Failed");

  default:
  console.log("Unknown grade");

}

console.log("Exiting switch block");