Răspuns:
A={1,6,18,22,29,34,42,48,56,89}
B={a,b,c,d,e,f,g,h,i,j}
M={xy,mn,op,iu,wq,sd,fg,ra,ty,vk}
K={2,4,6,8,10,12,14,16,18,20}