hello all,I am at the beginning of learning swift with the ipad playgrounds.in the chapter, where you have to go through a labyrinth till you collected 3 gems and toggled 4 switches, I have the following problem.ar numberGem = 0 var numberSwitch = 0 } func direction() { if isBlocked && isBlockedLeft { turnRight() } else if isBlocked && isBlockedRight { turnLeft() } } func gemSwitchVar() { if isOnGem { collectGem() numberGem += 1 } else if isOnClosedSwitch { toggleSwitch() numberSwitch += 1 } } while numberGem < 4 && numberSwitch < 5 { gemSwitchVar() direction() moveForward() }the while loop always stops after the figure collected 3 gems. It does not continue till it also toggled 4 switches. I always thought that with AND both conditions had to be fullfilled. And the OR operator would display the behaviour it does now.I had the same problem with a while loop in an earlier chapter where I tried a while loop likewhile !isBlocked && !isBlockLeft && !isBlockedRightto make my figure walk till the end of the course, which was blocked in the upper way.Where is my thought error.