Raspuns repede, va rog.URGENT!

Ex 11:a{0,1,2,3,4}
b{0,1,2,3,4}
Ex 12:a={0,1,2,3,4.....}
b={0,1,2,3,4}
Ex 13:a=28,3
b=24,993
Ex 14:a)321
b)6237
c)321
d)14.680
Sper ca te-am ajutat!!