Marks.js

var MaxNum = 0;
var MinNum = 10000000000;

var count = 0
while (count < 6) {
  print ("please enter a number");
  var num1 = getInput
  num1 = parseFloat (num1)
  if (num1 > MaxNum{
    Maxnum = num1
  }
  if (num1 < MinNum) {
    MinNum = num1
  count = count + 1;
}

Toms.js

var MaxNum = 0;
var MinNum = 0;

var count = 0
while (count < 6) {
  print ("please enter a number");
  var num1 = getInput
  num1 = parseFloat (num1)
  if (num1 > MaxNum || count = 0) {
    Maxnum = num1
  }
  if (num1 < MinNum || count = 0) {
    MinNum = num1
  count = count + 1;
}