Are they beggars or cheaters?

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In our world, beggars can be seen in every big city, like Newyork or Beijing. some beggars sit at a street corner or on a street brige, kowtowing with an old jug in which there are some noisy coins. They are beggars. However, I have met some other types of beggars recently, they always appear in pairs, or in a group of three, they are dressed OK, and they are always young girls or a couple with a baby, they would walk around the main street and would say to the passers-by "Excuse me, my baby is hungry or our wallet was stolen or...would you like to give some dollars for us to buy a meal or a ticket home" they would just ask for one or two dollars, but after someone gives them the money, they would would walk a few steps and turn to others for money with the same reason, i think they are cheaters.