#!/usr/bin/env ruby
b = [23, -14, 45, 78, -2.5] 
s = 0
b.each {|i| s +=i}
puts s

puts "Еще разок..."
s = 0
b.collect {|i| s +=i}
puts s
=begin
a = ["a", "b", "c", "d"]
p a.collect {|i| i+"!"}
=end