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*''
D2=D[0...-elem_siz]
$><<eval(L+O.zip(D2.reverse).map{|x,y|x+y}*'')
$><<' '
if O-[?+]==[]
	E=D.each_slice(O.size+1).to_a
	p E[0].zip(*E[1..-1]).map{|e|e.join.to_i}.reduce(:+)
else
	p eval(D2.zip(O).map{|x,y|x+y}*''+L)
end