Va rog repede va dau coroană

Răspuns:
A={1,2,3}
A={1,2,3,4}
A={1,2,3,4,5}
A={1,2,3,4,5,6}
A={1,2,3,4,6}
A={1,2,3,5,6}
A={1,2,3,6}