a)
33 => {1;3}
44 => {1;4}
49 => {1;2;7}
55 =>{1;5}
b)
33 => {33}
44 => {44}
49 => {49}
55 =>{55}
c)
33 => {33;66;99}
44 => {44;88}
49 => {49;98}
d)
coronita?