Same problem in pascal: program z_parovi; var n,m,a,x,i,j: integer; begin readln(m,n); for i:= 1 to n do begin read(x); for j:= 1 to x do read(a); readln; end; for i:= 1 to m do begin read(x); for j:= 1 to x do read(a); readln; end; writeln('1'); writeln('1 1'); end.