n=gets.to_i
t=gets.to_i
a=gets.split.map(&:to_i)
dp=Array.new(n+1){Array.new(t+1,"!")}
dp[1][a[0]]=""

(1...n).each do |x|
  (0..t).each do |y|
    next if dp[x][y]=="!"
    dp[x+1][y+a[x]]=[dp[x+1][y+a[x]],dp[x][y]+"+"].max if y+a[x]<=t
    dp[x+1][y*a[x]]=[dp[x+1][y*a[x]],dp[x][y]+"*"].max if y*a[x]<=t
  end
end

puts dp[n][t]