gets
D=[]
O=[]
gets.split.sort.each{|e|D<<Integer(e).to_s rescue O<<e}
elem_siz=D.size-O.size
L=D[-elem_siz..-1].reverse*''
M=D[0...-elem_siz]
E=D.each_slice(O.size+1).to_a
$><<eval(L+O.zip(M.reverse).map{|x,y|x+y}*'')
$><<' '
p O-[?+]==[] ? E.shift.zip(*E).reduce(0){|s,e|s+e.join.to_i} : eval(M.zip(O).map{|x,y|x+y}*''+L)