tolong jawab ya!! please!!

S ={ 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 }
A ={11, 13, 15, 17, 19}
B ={10, 12, 14, 16, 18, 20}
S ={1, 2, 3, 4, 5, 6, 7, 8, 9}
A ={1, 3, 5, 7, 9}
B ={4, 6, 8}
S ={2, 3, 4, 5,  6, 7, 8}
A ={2, 4, 6, 8}
B ={4, 6, 8}

Maaf y klo salah :)