The company of funny monsters loves to eat different types of sushi. In the new exciting online game Monster X Sushi you will feed them with them. One of the monsters will be visible on the screen in front of you. Under it there will be plates covered with glass opaque flasks. In one move, you can open any two plates and see which sushi is on it. Then the plates are again covered with flasks. Your task is to find two identical objects and open the plates on which they are located at the same time. As soon as you do this, this food will fall into the mouth of the monster and for this you will be given points in the Monster X Sushi game.