Thieves and Detectives

All the players are given the sheets of paper with the figure (1 or 2). The number of the sheets of paper with the figure 1 is equal to the number of sheets of paper with the figure 2. The players choose the leader - the main thief. He/she goes out of the room. The players who are in the room hide any object there. The leader's task is to find it. He/she tries to find the object with the help of the players-thieves (they have figure 1 on their sheets of paper). The players-thieves show place where the object is hidden by their eyes. The task of the detectives (they have figure 2 on their sheets of paper) is to watch the players and find the thieves among them. The game is over when the hidden object is found or when all the thieves are "caught" by the detectives.
Determine the Length
Claps
Familiar Noises