tbl = [1, 0, 0, 0, 1, 0, 1, 0, 2, 1] A = gets.chomp.chars.map{|c| ('0'..'9').cover?(c) && c.to_i }.compact a = A.map{|n| tbl[n] + 3 }.inject(:+) - (A.size-1) b = A.map{|n| tbl[n] * 2 + 3 }.inject(:+) - (A.size-1)*2 p [a, b].min