val resolutions = List("exercise", "save money", "learn scala")
var i = 0

while (i < resolutions.length) {
  var tasks = getTasks(resolutions(i))
  var j = 0

  while (j < tasks.length) {
    if (tryTask(tasks(j)))
      println(tasks(j) + " completed!")

    j = j + 1
  }

  i = i + 1
}